[ALSA] usb-audio - Fix a typo of CONFIG_PROC_FS
[safe/jmp/linux-2.6] / sound / usb / usbaudio.c
index 2ead878..087f9b6 100644 (file)
 #include <sound/driver.h>
 #include <linux/bitops.h>
 #include <linux/init.h>
-#include <linux/interrupt.h>
 #include <linux/list.h>
 #include <linux/slab.h>
 #include <linux/string.h>
 #include <linux/usb.h>
 #include <linux/vmalloc.h>
 #include <linux/moduleparam.h>
+#include <linux/mutex.h>
 #include <sound/core.h>
 #include <sound/info.h>
 #include <sound/pcm.h>
@@ -70,6 +70,7 @@ static int vid[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS-1)] = -1 }; /* Vendor ID for
 static int pid[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS-1)] = -1 }; /* Product ID for this card */
 static int nrpacks = 4;                /* max. number of packets per urb */
 static int async_unlink = 1;
+static int device_setup[SNDRV_CARDS]; /* device parameter for this card*/
 
 module_param_array(index, int, NULL, 0444);
 MODULE_PARM_DESC(index, "Index value for the USB audio adapter.");
@@ -85,6 +86,8 @@ module_param(nrpacks, int, 0644);
 MODULE_PARM_DESC(nrpacks, "Max. number of packets per URB.");
 module_param(async_unlink, bool, 0444);
 MODULE_PARM_DESC(async_unlink, "Use async unlink mode.");
+module_param_array(device_setup, int, NULL, 0444);
+MODULE_PARM_DESC(device_setup, "Specific device setup (if needed).");
 
 
 /*
@@ -103,10 +106,6 @@ MODULE_PARM_DESC(async_unlink, "Use async unlink mode.");
 #define SYNC_URBS      4       /* always four urbs for sync */
 #define MIN_PACKS_URB  1       /* minimum 1 packet per urb */
 
-typedef struct snd_usb_substream snd_usb_substream_t;
-typedef struct snd_usb_stream snd_usb_stream_t;
-typedef struct snd_urb_ctx snd_urb_ctx_t;
-
 struct audioformat {
        struct list_head list;
        snd_pcm_format_t format;        /* format type */
@@ -126,25 +125,27 @@ struct audioformat {
        unsigned int *rate_table;       /* rate table */
 };
 
+struct snd_usb_substream;
+
 struct snd_urb_ctx {
        struct urb *urb;
        unsigned int buffer_size;       /* size of data buffer, if data URB */
-       snd_usb_substream_t *subs;
+       struct snd_usb_substream *subs;
        int index;      /* index for urb array */
        int packets;    /* number of packets per urb */
 };
 
 struct snd_urb_ops {
-       int (*prepare)(snd_usb_substream_t *subs, snd_pcm_runtime_t *runtime, struct urb *u);
-       int (*retire)(snd_usb_substream_t *subs, snd_pcm_runtime_t *runtime, struct urb *u);
-       int (*prepare_sync)(snd_usb_substream_t *subs, snd_pcm_runtime_t *runtime, struct urb *u);
-       int (*retire_sync)(snd_usb_substream_t *subs, snd_pcm_runtime_t *runtime, struct urb *u);
+       int (*prepare)(struct snd_usb_substream *subs, struct snd_pcm_runtime *runtime, struct urb *u);
+       int (*retire)(struct snd_usb_substream *subs, struct snd_pcm_runtime *runtime, struct urb *u);
+       int (*prepare_sync)(struct snd_usb_substream *subs, struct snd_pcm_runtime *runtime, struct urb *u);
+       int (*retire_sync)(struct snd_usb_substream *subs, struct snd_pcm_runtime *runtime, struct urb *u);
 };
 
 struct snd_usb_substream {
-       snd_usb_stream_t *stream;
+       struct snd_usb_stream *stream;
        struct usb_device *dev;
-       snd_pcm_substream_t *pcm_substream;
+       struct snd_pcm_substream *pcm_substream;
        int direction;  /* playback or capture */
        int interface;  /* current interface */
        int endpoint;   /* assigned endpoint */
@@ -176,8 +177,8 @@ struct snd_usb_substream {
        unsigned long unlink_mask;      /* bitmask of unlinked urbs */
 
        unsigned int nurbs;                     /* # urbs */
-       snd_urb_ctx_t dataurb[MAX_URBS];        /* data urb table */
-       snd_urb_ctx_t syncurb[SYNC_URBS];       /* sync urb table */
+       struct snd_urb_ctx dataurb[MAX_URBS];   /* data urb table */
+       struct snd_urb_ctx syncurb[SYNC_URBS];  /* sync urb table */
        char *syncbuf;                          /* sync buffer for all sync URBs */
        dma_addr_t sync_dma;                    /* DMA address of syncbuf */
 
@@ -185,18 +186,17 @@ struct snd_usb_substream {
        unsigned int num_formats;               /* number of supported audio formats (list) */
        struct list_head fmt_list;      /* format list */
        spinlock_t lock;
-       struct tasklet_struct start_period_elapsed;     /* for start trigger */
 
        struct snd_urb_ops ops;         /* callbacks (must be filled at init) */
 };
 
 
 struct snd_usb_stream {
-       snd_usb_audio_t *chip;
-       snd_pcm_t *pcm;
+       struct snd_usb_audio *chip;
+       struct snd_pcm *pcm;
        int pcm_index;
        unsigned int fmt_type;          /* USB audio format type (1-3) */
-       snd_usb_substream_t substream[2];
+       struct snd_usb_substream substream[2];
        struct list_head list;
 };
 
@@ -206,8 +206,8 @@ struct snd_usb_stream {
  * the all interfaces on the same card as one sound device.
  */
 
-static DECLARE_MUTEX(register_mutex);
-static snd_usb_audio_t *usb_chip[SNDRV_CARDS];
+static DEFINE_MUTEX(register_mutex);
+static struct snd_usb_audio *usb_chip[SNDRV_CARDS];
 
 
 /*
@@ -247,12 +247,12 @@ static inline unsigned get_high_speed_hz(unsigned int usb_rate)
  * fill the length and offset of each urb descriptor.
  * the fixed 10.14 frequency is passed through the pipe.
  */
-static int prepare_capture_sync_urb(snd_usb_substream_t *subs,
-                                   snd_pcm_runtime_t *runtime,
+static int prepare_capture_sync_urb(struct snd_usb_substream *subs,
+                                   struct snd_pcm_runtime *runtime,
                                    struct urb *urb)
 {
        unsigned char *cp = urb->transfer_buffer;
-       snd_urb_ctx_t *ctx = (snd_urb_ctx_t *)urb->context;
+       struct snd_urb_ctx *ctx = (struct snd_urb_ctx *)urb->context;
 
        urb->dev = ctx->subs->dev; /* we need to set this at each time */
        urb->iso_frame_desc[0].length = 3;
@@ -269,12 +269,12 @@ static int prepare_capture_sync_urb(snd_usb_substream_t *subs,
  * fill the length and offset of each urb descriptor.
  * the fixed 12.13 frequency is passed as 16.16 through the pipe.
  */
-static int prepare_capture_sync_urb_hs(snd_usb_substream_t *subs,
-                                      snd_pcm_runtime_t *runtime,
+static int prepare_capture_sync_urb_hs(struct snd_usb_substream *subs,
+                                      struct snd_pcm_runtime *runtime,
                                       struct urb *urb)
 {
        unsigned char *cp = urb->transfer_buffer;
-       snd_urb_ctx_t *ctx = (snd_urb_ctx_t *)urb->context;
+       struct snd_urb_ctx *ctx = (struct snd_urb_ctx *)urb->context;
 
        urb->dev = ctx->subs->dev; /* we need to set this at each time */
        urb->iso_frame_desc[0].length = 4;
@@ -290,8 +290,8 @@ static int prepare_capture_sync_urb_hs(snd_usb_substream_t *subs,
  * process after capture sync complete
  * - nothing to do
  */
-static int retire_capture_sync_urb(snd_usb_substream_t *subs,
-                                  snd_pcm_runtime_t *runtime,
+static int retire_capture_sync_urb(struct snd_usb_substream *subs,
+                                  struct snd_pcm_runtime *runtime,
                                   struct urb *urb)
 {
        return 0;
@@ -307,12 +307,12 @@ static int retire_capture_sync_urb(snd_usb_substream_t *subs,
  * write onto the pcm buffer directly...  the data is thus copied
  * later at complete callback to the global buffer.
  */
-static int prepare_capture_urb(snd_usb_substream_t *subs,
-                              snd_pcm_runtime_t *runtime,
+static int prepare_capture_urb(struct snd_usb_substream *subs,
+                              struct snd_pcm_runtime *runtime,
                               struct urb *urb)
 {
        int i, offs;
-       snd_urb_ctx_t *ctx = (snd_urb_ctx_t *)urb->context;
+       struct snd_urb_ctx *ctx = (struct snd_urb_ctx *)urb->context;
 
        offs = 0;
        urb->dev = ctx->subs->dev; /* we need to set this at each time */
@@ -342,8 +342,8 @@ static int prepare_capture_urb(snd_usb_substream_t *subs,
  * copy the data from each desctiptor to the pcm buffer, and
  * update the current position.
  */
-static int retire_capture_urb(snd_usb_substream_t *subs,
-                             snd_pcm_runtime_t *runtime,
+static int retire_capture_urb(struct snd_usb_substream *subs,
+                             struct snd_pcm_runtime *runtime,
                              struct urb *urb)
 {
        unsigned long flags;
@@ -397,11 +397,11 @@ static int retire_capture_urb(snd_usb_substream_t *subs,
  * set up the offset and length to receive the current frequency.
  */
 
-static int prepare_playback_sync_urb(snd_usb_substream_t *subs,
-                                    snd_pcm_runtime_t *runtime,
+static int prepare_playback_sync_urb(struct snd_usb_substream *subs,
+                                    struct snd_pcm_runtime *runtime,
                                     struct urb *urb)
 {
-       snd_urb_ctx_t *ctx = (snd_urb_ctx_t *)urb->context;
+       struct snd_urb_ctx *ctx = (struct snd_urb_ctx *)urb->context;
 
        urb->dev = ctx->subs->dev; /* we need to set this at each time */
        urb->iso_frame_desc[0].length = 3;
@@ -415,11 +415,11 @@ static int prepare_playback_sync_urb(snd_usb_substream_t *subs,
  * set up the offset and length to receive the current frequency.
  */
 
-static int prepare_playback_sync_urb_hs(snd_usb_substream_t *subs,
-                                       snd_pcm_runtime_t *runtime,
+static int prepare_playback_sync_urb_hs(struct snd_usb_substream *subs,
+                                       struct snd_pcm_runtime *runtime,
                                        struct urb *urb)
 {
-       snd_urb_ctx_t *ctx = (snd_urb_ctx_t *)urb->context;
+       struct snd_urb_ctx *ctx = (struct snd_urb_ctx *)urb->context;
 
        urb->dev = ctx->subs->dev; /* we need to set this at each time */
        urb->iso_frame_desc[0].length = 4;
@@ -433,8 +433,8 @@ static int prepare_playback_sync_urb_hs(snd_usb_substream_t *subs,
  * retrieve the current 10.14 frequency from pipe, and set it.
  * the value is referred in prepare_playback_urb().
  */
-static int retire_playback_sync_urb(snd_usb_substream_t *subs,
-                                   snd_pcm_runtime_t *runtime,
+static int retire_playback_sync_urb(struct snd_usb_substream *subs,
+                                   struct snd_pcm_runtime *runtime,
                                    struct urb *urb)
 {
        unsigned int f;
@@ -459,8 +459,8 @@ static int retire_playback_sync_urb(snd_usb_substream_t *subs,
  * retrieve the current 12.13 frequency from pipe, and set it.
  * the value is referred in prepare_playback_urb().
  */
-static int retire_playback_sync_urb_hs(snd_usb_substream_t *subs,
-                                      snd_pcm_runtime_t *runtime,
+static int retire_playback_sync_urb_hs(struct snd_usb_substream *subs,
+                                      struct snd_pcm_runtime *runtime,
                                       struct urb *urb)
 {
        unsigned int f;
@@ -479,6 +479,47 @@ static int retire_playback_sync_urb_hs(snd_usb_substream_t *subs,
        return 0;
 }
 
+/* determine the number of frames in the next packet */
+static int snd_usb_audio_next_packet_size(struct snd_usb_substream *subs)
+{
+       if (subs->fill_max)
+               return subs->maxframesize;
+       else {
+               subs->phase = (subs->phase & 0xffff)
+                       + (subs->freqm << subs->datainterval);
+               return min(subs->phase >> 16, subs->maxframesize);
+       }
+}
+
+/*
+ * Prepare urb for streaming before playback starts.
+ *
+ * We don't yet have data, so we send a frame of silence.
+ */
+static int prepare_startup_playback_urb(struct snd_usb_substream *subs,
+                                       struct snd_pcm_runtime *runtime,
+                                       struct urb *urb)
+{
+       unsigned int i, offs, counts;
+       struct snd_urb_ctx *ctx = urb->context;
+       int stride = runtime->frame_bits >> 3;
+
+       offs = 0;
+       urb->dev = ctx->subs->dev;
+       urb->number_of_packets = subs->packs_per_ms;
+       for (i = 0; i < subs->packs_per_ms; ++i) {
+               counts = snd_usb_audio_next_packet_size(subs);
+               urb->iso_frame_desc[i].offset = offs * stride;
+               urb->iso_frame_desc[i].length = counts * stride;
+               offs += counts;
+       }
+       urb->transfer_buffer_length = offs * stride;
+       memset(urb->transfer_buffer,
+              subs->cur_audiofmt->format == SNDRV_PCM_FORMAT_U8 ? 0x80 : 0,
+              offs * stride);
+       return 0;
+}
+
 /*
  * prepare urb for playback data pipe
  *
@@ -487,15 +528,15 @@ static int retire_playback_sync_urb_hs(snd_usb_substream_t *subs,
  * To avoid inconsistencies when updating hwptr_done, we use double buffering
  * for all URBs.
  */
-static int prepare_playback_urb(snd_usb_substream_t *subs,
-                               snd_pcm_runtime_t *runtime,
+static int prepare_playback_urb(struct snd_usb_substream *subs,
+                               struct snd_pcm_runtime *runtime,
                                struct urb *urb)
 {
        int i, stride, offs;
        unsigned int counts;
        unsigned long flags;
        int period_elapsed = 0;
-       snd_urb_ctx_t *ctx = (snd_urb_ctx_t *)urb->context;
+       struct snd_urb_ctx *ctx = (struct snd_urb_ctx *)urb->context;
 
        stride = runtime->frame_bits >> 3;
 
@@ -504,16 +545,7 @@ static int prepare_playback_urb(snd_usb_substream_t *subs,
        urb->number_of_packets = 0;
        spin_lock_irqsave(&subs->lock, flags);
        for (i = 0; i < ctx->packets; i++) {
-               /* calculate the size of a packet */
-               if (subs->fill_max)
-                       counts = subs->maxframesize; /* fixed */
-               else {
-                       subs->phase = (subs->phase & 0xffff)
-                               + (subs->freqm << subs->datainterval);
-                       counts = subs->phase >> 16;
-                       if (counts > subs->maxframesize)
-                               counts = subs->maxframesize;
-               }
+               counts = snd_usb_audio_next_packet_size(subs);
                /* set up descriptor */
                urb->iso_frame_desc[i].offset = offs * stride;
                urb->iso_frame_desc[i].length = counts * stride;
@@ -568,12 +600,8 @@ static int prepare_playback_urb(snd_usb_substream_t *subs,
                subs->hwptr_done -= runtime->buffer_size;
        spin_unlock_irqrestore(&subs->lock, flags);
        urb->transfer_buffer_length = offs * stride;
-       if (period_elapsed) {
-               if (likely(subs->running))
-                       snd_pcm_period_elapsed(subs->pcm_substream);
-               else
-                       tasklet_hi_schedule(&subs->start_period_elapsed);
-       }
+       if (period_elapsed)
+               snd_pcm_period_elapsed(subs->pcm_substream);
        return 0;
 }
 
@@ -581,29 +609,19 @@ static int prepare_playback_urb(snd_usb_substream_t *subs,
  * process after playback data complete
  * - nothing to do
  */
-static int retire_playback_urb(snd_usb_substream_t *subs,
-                              snd_pcm_runtime_t *runtime,
+static int retire_playback_urb(struct snd_usb_substream *subs,
+                              struct snd_pcm_runtime *runtime,
                               struct urb *urb)
 {
        return 0;
 }
 
-/*
- * Delay the snd_pcm_period_elapsed() call until after the start trigger
- * callback so that we're not longer in the substream's lock.
- */
-static void start_period_elapsed(unsigned long data)
-{
-       snd_usb_substream_t *subs = (snd_usb_substream_t *)data;
-       snd_pcm_period_elapsed(subs->pcm_substream);
-}
-
 
 /*
  */
 static struct snd_urb_ops audio_urb_ops[2] = {
        {
-               .prepare =      prepare_playback_urb,
+               .prepare =      prepare_startup_playback_urb,
                .retire =       retire_playback_urb,
                .prepare_sync = prepare_playback_sync_urb,
                .retire_sync =  retire_playback_sync_urb,
@@ -618,7 +636,7 @@ static struct snd_urb_ops audio_urb_ops[2] = {
 
 static struct snd_urb_ops audio_urb_ops_high_speed[2] = {
        {
-               .prepare =      prepare_playback_urb,
+               .prepare =      prepare_startup_playback_urb,
                .retire =       retire_playback_urb,
                .prepare_sync = prepare_playback_sync_urb_hs,
                .retire_sync =  retire_playback_sync_urb_hs,
@@ -636,9 +654,9 @@ static struct snd_urb_ops audio_urb_ops_high_speed[2] = {
  */
 static void snd_complete_urb(struct urb *urb, struct pt_regs *regs)
 {
-       snd_urb_ctx_t *ctx = (snd_urb_ctx_t *)urb->context;
-       snd_usb_substream_t *subs = ctx->subs;
-       snd_pcm_substream_t *substream = ctx->subs->pcm_substream;
+       struct snd_urb_ctx *ctx = (struct snd_urb_ctx *)urb->context;
+       struct snd_usb_substream *subs = ctx->subs;
+       struct snd_pcm_substream *substream = ctx->subs->pcm_substream;
        int err = 0;
 
        if ((subs->running && subs->ops.retire(subs, substream->runtime, urb)) ||
@@ -659,9 +677,9 @@ static void snd_complete_urb(struct urb *urb, struct pt_regs *regs)
  */
 static void snd_complete_sync_urb(struct urb *urb, struct pt_regs *regs)
 {
-       snd_urb_ctx_t *ctx = (snd_urb_ctx_t *)urb->context;
-       snd_usb_substream_t *subs = ctx->subs;
-       snd_pcm_substream_t *substream = ctx->subs->pcm_substream;
+       struct snd_urb_ctx *ctx = (struct snd_urb_ctx *)urb->context;
+       struct snd_usb_substream *subs = ctx->subs;
+       struct snd_pcm_substream *substream = ctx->subs->pcm_substream;
        int err = 0;
 
        if ((subs->running && subs->ops.retire_sync(subs, substream->runtime, urb)) ||
@@ -678,7 +696,7 @@ static void snd_complete_sync_urb(struct urb *urb, struct pt_regs *regs)
 
 
 /* get the physical page pointer at the given offset */
-static struct page *snd_pcm_get_vmalloc_page(snd_pcm_substream_t *subs,
+static struct page *snd_pcm_get_vmalloc_page(struct snd_pcm_substream *subs,
                                             unsigned long offset)
 {
        void *pageptr = subs->runtime->dma_area + offset;
@@ -686,15 +704,15 @@ static struct page *snd_pcm_get_vmalloc_page(snd_pcm_substream_t *subs,
 }
 
 /* allocate virtual buffer; may be called more than once */
-static int snd_pcm_alloc_vmalloc_buffer(snd_pcm_substream_t *subs, size_t size)
+static int snd_pcm_alloc_vmalloc_buffer(struct snd_pcm_substream *subs, size_t size)
 {
-       snd_pcm_runtime_t *runtime = subs->runtime;
+       struct snd_pcm_runtime *runtime = subs->runtime;
        if (runtime->dma_area) {
                if (runtime->dma_bytes >= size)
                        return 0; /* already large enough */
-               vfree_nocheck(runtime->dma_area);
+               vfree(runtime->dma_area);
        }
-       runtime->dma_area = vmalloc_nocheck(size);
+       runtime->dma_area = vmalloc(size);
        if (! runtime->dma_area)
                return -ENOMEM;
        runtime->dma_bytes = size;
@@ -702,13 +720,12 @@ static int snd_pcm_alloc_vmalloc_buffer(snd_pcm_substream_t *subs, size_t size)
 }
 
 /* free virtual buffer; may be called more than once */
-static int snd_pcm_free_vmalloc_buffer(snd_pcm_substream_t *subs)
+static int snd_pcm_free_vmalloc_buffer(struct snd_pcm_substream *subs)
 {
-       snd_pcm_runtime_t *runtime = subs->runtime;
-       if (runtime->dma_area) {
-               vfree_nocheck(runtime->dma_area);
-               runtime->dma_area = NULL;
-       }
+       struct snd_pcm_runtime *runtime = subs->runtime;
+
+       vfree(runtime->dma_area);
+       runtime->dma_area = NULL;
        return 0;
 }
 
@@ -716,7 +733,7 @@ static int snd_pcm_free_vmalloc_buffer(snd_pcm_substream_t *subs)
 /*
  * unlink active urbs.
  */
-static int deactivate_urbs(snd_usb_substream_t *subs, int force, int can_sleep)
+static int deactivate_urbs(struct snd_usb_substream *subs, int force, int can_sleep)
 {
        unsigned int i;
        int async;
@@ -759,10 +776,39 @@ static int deactivate_urbs(snd_usb_substream_t *subs, int force, int can_sleep)
 }
 
 
+static const char *usb_error_string(int err)
+{
+       switch (err) {
+       case -ENODEV:
+               return "no device";
+       case -ENOENT:
+               return "endpoint not enabled";
+       case -EPIPE:
+               return "endpoint stalled";
+       case -ENOSPC:
+               return "not enough bandwidth";
+       case -ESHUTDOWN:
+               return "device disabled";
+       case -EHOSTUNREACH:
+               return "device suspended";
+#ifndef CONFIG_USB_EHCI_SPLIT_ISO
+       case -ENOSYS:
+               return "enable CONFIG_USB_EHCI_SPLIT_ISO to play through a hub";
+#endif
+       case -EINVAL:
+       case -EAGAIN:
+       case -EFBIG:
+       case -EMSGSIZE:
+               return "internal error";
+       default:
+               return "unknown error";
+       }
+}
+
 /*
  * set up and start data/sync urbs
  */
-static int start_urbs(snd_usb_substream_t *subs, snd_pcm_runtime_t *runtime)
+static int start_urbs(struct snd_usb_substream *subs, struct snd_pcm_runtime *runtime)
 {
        unsigned int i;
        int err;
@@ -791,16 +837,22 @@ static int start_urbs(snd_usb_substream_t *subs, snd_pcm_runtime_t *runtime)
        subs->unlink_mask = 0;
        subs->running = 1;
        for (i = 0; i < subs->nurbs; i++) {
-               if ((err = usb_submit_urb(subs->dataurb[i].urb, GFP_ATOMIC)) < 0) {
-                       snd_printk(KERN_ERR "cannot submit datapipe for urb %d, err = %d\n", i, err);
+               err = usb_submit_urb(subs->dataurb[i].urb, GFP_ATOMIC);
+               if (err < 0) {
+                       snd_printk(KERN_ERR "cannot submit datapipe "
+                                  "for urb %d, error %d: %s\n",
+                                  i, err, usb_error_string(err));
                        goto __error;
                }
                set_bit(i, &subs->active_mask);
        }
        if (subs->syncpipe) {
                for (i = 0; i < SYNC_URBS; i++) {
-                       if ((err = usb_submit_urb(subs->syncurb[i].urb, GFP_ATOMIC)) < 0) {
-                               snd_printk(KERN_ERR "cannot submit syncpipe for urb %d, err = %d\n", i, err);
+                       err = usb_submit_urb(subs->syncurb[i].urb, GFP_ATOMIC);
+                       if (err < 0) {
+                               snd_printk(KERN_ERR "cannot submit syncpipe "
+                                          "for urb %d, error %d: %s\n",
+                                          i, err, usb_error_string(err));
                                goto __error;
                        }
                        set_bit(i + 16, &subs->active_mask);
@@ -818,7 +870,7 @@ static int start_urbs(snd_usb_substream_t *subs, snd_pcm_runtime_t *runtime)
 /*
  *  wait until all urbs are processed.
  */
-static int wait_clear_urbs(snd_usb_substream_t *subs)
+static int wait_clear_urbs(struct snd_usb_substream *subs)
 {
        unsigned long end_time = jiffies + msecs_to_jiffies(1000);
        unsigned int i;
@@ -838,8 +890,7 @@ static int wait_clear_urbs(snd_usb_substream_t *subs)
                }
                if (! alive)
                        break;
-               set_current_state(TASK_UNINTERRUPTIBLE);
-               schedule_timeout(1);
+               schedule_timeout_uninterruptible(1);
        } while (time_before(jiffies, end_time));
        if (alive)
                snd_printk(KERN_ERR "timeout: still %d active urbs..\n", alive);
@@ -850,12 +901,12 @@ static int wait_clear_urbs(snd_usb_substream_t *subs)
 /*
  * return the current pcm pointer.  just return the hwptr_done value.
  */
-static snd_pcm_uframes_t snd_usb_pcm_pointer(snd_pcm_substream_t *substream)
+static snd_pcm_uframes_t snd_usb_pcm_pointer(struct snd_pcm_substream *substream)
 {
-       snd_usb_substream_t *subs;
+       struct snd_usb_substream *subs;
        snd_pcm_uframes_t hwptr_done;
        
-       subs = (snd_usb_substream_t *)substream->runtime->private_data;
+       subs = (struct snd_usb_substream *)substream->runtime->private_data;
        spin_lock(&subs->lock);
        hwptr_done = subs->hwptr_done;
        spin_unlock(&subs->lock);
@@ -864,32 +915,47 @@ static snd_pcm_uframes_t snd_usb_pcm_pointer(snd_pcm_substream_t *substream)
 
 
 /*
- * start/stop substream
+ * start/stop playback substream
  */
-static int snd_usb_pcm_trigger(snd_pcm_substream_t *substream, int cmd)
+static int snd_usb_pcm_playback_trigger(struct snd_pcm_substream *substream,
+                                       int cmd)
 {
-       snd_usb_substream_t *subs = (snd_usb_substream_t *)substream->runtime->private_data;
-       int err;
+       struct snd_usb_substream *subs = substream->runtime->private_data;
 
        switch (cmd) {
        case SNDRV_PCM_TRIGGER_START:
-               err = start_urbs(subs, substream->runtime);
-               break;
+               subs->ops.prepare = prepare_playback_urb;
+               return 0;
        case SNDRV_PCM_TRIGGER_STOP:
-               err = deactivate_urbs(subs, 0, 0);
-               break;
+               return deactivate_urbs(subs, 0, 0);
        default:
-               err = -EINVAL;
-               break;
+               return -EINVAL;
+       }
+}
+
+/*
+ * start/stop capture substream
+ */
+static int snd_usb_pcm_capture_trigger(struct snd_pcm_substream *substream,
+                                      int cmd)
+{
+       struct snd_usb_substream *subs = substream->runtime->private_data;
+
+       switch (cmd) {
+       case SNDRV_PCM_TRIGGER_START:
+               return start_urbs(subs, substream->runtime);
+       case SNDRV_PCM_TRIGGER_STOP:
+               return deactivate_urbs(subs, 0, 0);
+       default:
+               return -EINVAL;
        }
-       return err < 0 ? err : 0;
 }
 
 
 /*
  * release a urb data
  */
-static void release_urb_ctx(snd_urb_ctx_t *u)
+static void release_urb_ctx(struct snd_urb_ctx *u)
 {
        if (u->urb) {
                if (u->buffer_size)
@@ -904,7 +970,7 @@ static void release_urb_ctx(snd_urb_ctx_t *u)
 /*
  * release a substream
  */
-static void release_substream_urbs(snd_usb_substream_t *subs, int force)
+static void release_substream_urbs(struct snd_usb_substream *subs, int force)
 {
        int i;
 
@@ -925,7 +991,7 @@ static void release_substream_urbs(snd_usb_substream_t *subs, int force)
 /*
  * initialize a substream for plaback/capture
  */
-static int init_substream_urbs(snd_usb_substream_t *subs, unsigned int period_bytes,
+static int init_substream_urbs(struct snd_usb_substream *subs, unsigned int period_bytes,
                               unsigned int rate, unsigned int frame_bits)
 {
        unsigned int maxsize, n, i;
@@ -1025,7 +1091,7 @@ static int init_substream_urbs(snd_usb_substream_t *subs, unsigned int period_by
 
        /* allocate and initialize data urbs */
        for (i = 0; i < subs->nurbs; i++) {
-               snd_urb_ctx_t *u = &subs->dataurb[i];
+               struct snd_urb_ctx *u = &subs->dataurb[i];
                u->index = i;
                u->subs = subs;
                u->packets = npacks[i];
@@ -1044,7 +1110,7 @@ static int init_substream_urbs(snd_usb_substream_t *subs, unsigned int period_by
                u->urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
                u->urb->interval = 1 << subs->datainterval;
                u->urb->context = u;
-               u->urb->complete = snd_usb_complete_callback(snd_complete_urb);
+               u->urb->complete = snd_complete_urb;
        }
 
        if (subs->syncpipe) {
@@ -1054,7 +1120,7 @@ static int init_substream_urbs(snd_usb_substream_t *subs, unsigned int period_by
                if (! subs->syncbuf)
                        goto out_of_memory;
                for (i = 0; i < SYNC_URBS; i++) {
-                       snd_urb_ctx_t *u = &subs->syncurb[i];
+                       struct snd_urb_ctx *u = &subs->syncurb[i];
                        u->index = i;
                        u->subs = subs;
                        u->packets = 1;
@@ -1070,7 +1136,7 @@ static int init_substream_urbs(snd_usb_substream_t *subs, unsigned int period_by
                        u->urb->number_of_packets = 1;
                        u->urb->interval = 1 << subs->syncinterval;
                        u->urb->context = u;
-                       u->urb->complete = snd_usb_complete_callback(snd_complete_sync_urb);
+                       u->urb->complete = snd_complete_sync_urb;
                }
        }
        return 0;
@@ -1084,7 +1150,7 @@ out_of_memory:
 /*
  * find a matching audio format
  */
-static struct audioformat *find_format(snd_usb_substream_t *subs, unsigned int format,
+static struct audioformat *find_format(struct snd_usb_substream *subs, unsigned int format,
                                       unsigned int rate, unsigned int channels)
 {
        struct list_head *p;
@@ -1209,7 +1275,7 @@ static int init_usb_sample_rate(struct usb_device *dev, int iface,
 /*
  * find a matching format and set up the interface
  */
-static int set_format(snd_usb_substream_t *subs, struct audioformat *fmt)
+static int set_format(struct snd_usb_substream *subs, struct audioformat *fmt)
 {
        struct usb_device *dev = subs->dev;
        struct usb_host_interface *alts;
@@ -1338,10 +1404,10 @@ static int set_format(snd_usb_substream_t *subs, struct audioformat *fmt)
  * if sg buffer is supported on the later version of alsa, we'll follow
  * that.
  */
-static int snd_usb_hw_params(snd_pcm_substream_t *substream,
-                            snd_pcm_hw_params_t *hw_params)
+static int snd_usb_hw_params(struct snd_pcm_substream *substream,
+                            struct snd_pcm_hw_params *hw_params)
 {
-       snd_usb_substream_t *subs = (snd_usb_substream_t *)substream->runtime->private_data;
+       struct snd_usb_substream *subs = (struct snd_usb_substream *)substream->runtime->private_data;
        struct audioformat *fmt;
        unsigned int channels, rate, format;
        int ret, changed;
@@ -1356,8 +1422,8 @@ static int snd_usb_hw_params(snd_pcm_substream_t *substream,
        channels = params_channels(hw_params);
        fmt = find_format(subs, format, rate, channels);
        if (! fmt) {
-               snd_printd(KERN_DEBUG "cannot set format: format = %s, rate = %d, channels = %d\n",
-                          snd_pcm_format_name(format), rate, channels);
+               snd_printd(KERN_DEBUG "cannot set format: format = 0x%x, rate = %d, channels = %d\n",
+                          format, rate, channels);
                return -EINVAL;
        }
 
@@ -1395,9 +1461,9 @@ static int snd_usb_hw_params(snd_pcm_substream_t *substream,
  *
  * reset the audio format and release the buffer
  */
-static int snd_usb_hw_free(snd_pcm_substream_t *substream)
+static int snd_usb_hw_free(struct snd_pcm_substream *substream)
 {
-       snd_usb_substream_t *subs = (snd_usb_substream_t *)substream->runtime->private_data;
+       struct snd_usb_substream *subs = (struct snd_usb_substream *)substream->runtime->private_data;
 
        subs->cur_audiofmt = NULL;
        subs->cur_rate = 0;
@@ -1411,10 +1477,10 @@ static int snd_usb_hw_free(snd_pcm_substream_t *substream)
  *
  * only a few subtle things...
  */
-static int snd_usb_pcm_prepare(snd_pcm_substream_t *substream)
+static int snd_usb_pcm_prepare(struct snd_pcm_substream *substream)
 {
-       snd_pcm_runtime_t *runtime = substream->runtime;
-       snd_usb_substream_t *subs = (snd_usb_substream_t *)runtime->private_data;
+       struct snd_pcm_runtime *runtime = substream->runtime;
+       struct snd_usb_substream *subs = runtime->private_data;
 
        if (! subs->cur_audiofmt) {
                snd_printk(KERN_ERR "usbaudio: no format is specified!\n");
@@ -1434,10 +1500,16 @@ static int snd_usb_pcm_prepare(snd_pcm_substream_t *substream)
        deactivate_urbs(subs, 0, 1);
        wait_clear_urbs(subs);
 
-       return 0;
+       /* for playback, submit the URBs now; otherwise, the first hwptr_done
+        * updates for all URBs would happen at the same time when starting */
+       if (subs->direction == SNDRV_PCM_STREAM_PLAYBACK) {
+               subs->ops.prepare = prepare_startup_playback_urb;
+               return start_urbs(subs, runtime);
+       } else
+               return 0;
 }
 
-static snd_pcm_hardware_t snd_usb_playback =
+static struct snd_pcm_hardware snd_usb_playback =
 {
        .info =                 SNDRV_PCM_INFO_MMAP |
                                SNDRV_PCM_INFO_MMAP_VALID |
@@ -1451,7 +1523,7 @@ static snd_pcm_hardware_t snd_usb_playback =
        .periods_max =          1024,
 };
 
-static snd_pcm_hardware_t snd_usb_capture =
+static struct snd_pcm_hardware snd_usb_capture =
 {
        .info =                 SNDRV_PCM_INFO_MMAP |
                                SNDRV_PCM_INFO_MMAP_VALID |
@@ -1475,11 +1547,11 @@ static snd_pcm_hardware_t snd_usb_capture =
 #define hwc_debug(fmt, args...) /**/
 #endif
 
-static int hw_check_valid_format(snd_pcm_hw_params_t *params, struct audioformat *fp)
+static int hw_check_valid_format(struct snd_pcm_hw_params *params, struct audioformat *fp)
 {
-       snd_interval_t *it = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
-       snd_interval_t *ct = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
-       snd_mask_t *fmts = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
+       struct snd_interval *it = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
+       struct snd_interval *ct = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
+       struct snd_mask *fmts = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
 
        /* check the format */
        if (! snd_mask_test(fmts, fp->format)) {
@@ -1503,12 +1575,12 @@ static int hw_check_valid_format(snd_pcm_hw_params_t *params, struct audioformat
        return 1;
 }
 
-static int hw_rule_rate(snd_pcm_hw_params_t *params,
-                       snd_pcm_hw_rule_t *rule)
+static int hw_rule_rate(struct snd_pcm_hw_params *params,
+                       struct snd_pcm_hw_rule *rule)
 {
-       snd_usb_substream_t *subs = rule->private;
+       struct snd_usb_substream *subs = rule->private;
        struct list_head *p;
-       snd_interval_t *it = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
+       struct snd_interval *it = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
        unsigned int rmin, rmax;
        int changed;
 
@@ -1557,12 +1629,12 @@ static int hw_rule_rate(snd_pcm_hw_params_t *params,
 }
 
 
-static int hw_rule_channels(snd_pcm_hw_params_t *params,
-                           snd_pcm_hw_rule_t *rule)
+static int hw_rule_channels(struct snd_pcm_hw_params *params,
+                           struct snd_pcm_hw_rule *rule)
 {
-       snd_usb_substream_t *subs = rule->private;
+       struct snd_usb_substream *subs = rule->private;
        struct list_head *p;
-       snd_interval_t *it = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
+       struct snd_interval *it = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
        unsigned int rmin, rmax;
        int changed;
 
@@ -1610,12 +1682,12 @@ static int hw_rule_channels(snd_pcm_hw_params_t *params,
        return changed;
 }
 
-static int hw_rule_format(snd_pcm_hw_params_t *params,
-                         snd_pcm_hw_rule_t *rule)
+static int hw_rule_format(struct snd_pcm_hw_params *params,
+                         struct snd_pcm_hw_rule *rule)
 {
-       snd_usb_substream_t *subs = rule->private;
+       struct snd_usb_substream *subs = rule->private;
        struct list_head *p;
-       snd_mask_t *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
+       struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
        u64 fbits;
        u32 oldbits[2];
        int changed;
@@ -1648,7 +1720,7 @@ static int hw_rule_format(snd_pcm_hw_params_t *params,
 /*
  * check whether the registered audio formats need special hw-constraints
  */
-static int check_hw_params_convention(snd_usb_substream_t *subs)
+static int check_hw_params_convention(struct snd_usb_substream *subs)
 {
        int i;
        u32 *channels;
@@ -1732,7 +1804,7 @@ static int check_hw_params_convention(snd_usb_substream_t *subs)
  * set up the runtime hardware information.
  */
 
-static int setup_hw_info(snd_pcm_runtime_t *runtime, snd_usb_substream_t *subs)
+static int setup_hw_info(struct snd_pcm_runtime *runtime, struct snd_usb_substream *subs)
 {
        struct list_head *p;
        int err;
@@ -1793,12 +1865,12 @@ static int setup_hw_info(snd_pcm_runtime_t *runtime, snd_usb_substream_t *subs)
        return 0;
 }
 
-static int snd_usb_pcm_open(snd_pcm_substream_t *substream, int direction,
-                           snd_pcm_hardware_t *hw)
+static int snd_usb_pcm_open(struct snd_pcm_substream *substream, int direction,
+                           struct snd_pcm_hardware *hw)
 {
-       snd_usb_stream_t *as = snd_pcm_substream_chip(substream);
-       snd_pcm_runtime_t *runtime = substream->runtime;
-       snd_usb_substream_t *subs = &as->substream[direction];
+       struct snd_usb_stream *as = snd_pcm_substream_chip(substream);
+       struct snd_pcm_runtime *runtime = substream->runtime;
+       struct snd_usb_substream *subs = &as->substream[direction];
 
        subs->interface = -1;
        subs->format = 0;
@@ -1808,10 +1880,10 @@ static int snd_usb_pcm_open(snd_pcm_substream_t *substream, int direction,
        return setup_hw_info(runtime, subs);
 }
 
-static int snd_usb_pcm_close(snd_pcm_substream_t *substream, int direction)
+static int snd_usb_pcm_close(struct snd_pcm_substream *substream, int direction)
 {
-       snd_usb_stream_t *as = snd_pcm_substream_chip(substream);
-       snd_usb_substream_t *subs = &as->substream[direction];
+       struct snd_usb_stream *as = snd_pcm_substream_chip(substream);
+       struct snd_usb_substream *subs = &as->substream[direction];
 
        if (subs->interface >= 0) {
                usb_set_interface(subs->dev, subs->interface, 0);
@@ -1821,46 +1893,46 @@ static int snd_usb_pcm_close(snd_pcm_substream_t *substream, int direction)
        return 0;
 }
 
-static int snd_usb_playback_open(snd_pcm_substream_t *substream)
+static int snd_usb_playback_open(struct snd_pcm_substream *substream)
 {
        return snd_usb_pcm_open(substream, SNDRV_PCM_STREAM_PLAYBACK, &snd_usb_playback);
 }
 
-static int snd_usb_playback_close(snd_pcm_substream_t *substream)
+static int snd_usb_playback_close(struct snd_pcm_substream *substream)
 {
        return snd_usb_pcm_close(substream, SNDRV_PCM_STREAM_PLAYBACK);
 }
 
-static int snd_usb_capture_open(snd_pcm_substream_t *substream)
+static int snd_usb_capture_open(struct snd_pcm_substream *substream)
 {
        return snd_usb_pcm_open(substream, SNDRV_PCM_STREAM_CAPTURE, &snd_usb_capture);
 }
 
-static int snd_usb_capture_close(snd_pcm_substream_t *substream)
+static int snd_usb_capture_close(struct snd_pcm_substream *substream)
 {
        return snd_usb_pcm_close(substream, SNDRV_PCM_STREAM_CAPTURE);
 }
 
-static snd_pcm_ops_t snd_usb_playback_ops = {
+static struct snd_pcm_ops snd_usb_playback_ops = {
        .open =         snd_usb_playback_open,
        .close =        snd_usb_playback_close,
        .ioctl =        snd_pcm_lib_ioctl,
        .hw_params =    snd_usb_hw_params,
        .hw_free =      snd_usb_hw_free,
        .prepare =      snd_usb_pcm_prepare,
-       .trigger =      snd_usb_pcm_trigger,
+       .trigger =      snd_usb_pcm_playback_trigger,
        .pointer =      snd_usb_pcm_pointer,
        .page =         snd_pcm_get_vmalloc_page,
 };
 
-static snd_pcm_ops_t snd_usb_capture_ops = {
+static struct snd_pcm_ops snd_usb_capture_ops = {
        .open =         snd_usb_capture_open,
        .close =        snd_usb_capture_close,
        .ioctl =        snd_pcm_lib_ioctl,
        .hw_params =    snd_usb_hw_params,
        .hw_free =      snd_usb_hw_free,
        .prepare =      snd_usb_pcm_prepare,
-       .trigger =      snd_usb_pcm_trigger,
+       .trigger =      snd_usb_pcm_capture_trigger,
        .pointer =      snd_usb_pcm_pointer,
        .page =         snd_pcm_get_vmalloc_page,
 };
@@ -1970,7 +2042,6 @@ static struct usb_device_id usb_audio_ids [] = {
 MODULE_DEVICE_TABLE (usb, usb_audio_ids);
 
 static struct usb_driver usb_audio_driver = {
-       .owner =        THIS_MODULE,
        .name =         "snd-usb-audio",
        .probe =        usb_audio_probe,
        .disconnect =   usb_audio_disconnect,
@@ -1978,10 +2049,12 @@ static struct usb_driver usb_audio_driver = {
 };
 
 
+#if defined(CONFIG_PROC_FS) && defined(CONFIG_SND_VERBOSE_PROCFS)
+
 /*
  * proc interface for list the supported pcm formats
  */
-static void proc_dump_substream_formats(snd_usb_substream_t *subs, snd_info_buffer_t *buffer)
+static void proc_dump_substream_formats(struct snd_usb_substream *subs, struct snd_info_buffer *buffer)
 {
        struct list_head *p;
        static char *sync_types[4] = {
@@ -1993,7 +2066,7 @@ static void proc_dump_substream_formats(snd_usb_substream_t *subs, snd_info_buff
                fp = list_entry(p, struct audioformat, list);
                snd_iprintf(buffer, "  Interface %d\n", fp->iface);
                snd_iprintf(buffer, "    Altset %d\n", fp->altsetting);
-               snd_iprintf(buffer, "    Format: %s\n", snd_pcm_format_name(fp->format));
+               snd_iprintf(buffer, "    Format: 0x%x\n", fp->format);
                snd_iprintf(buffer, "    Channels: %d\n", fp->channels);
                snd_iprintf(buffer, "    Endpoint: %d %s (%s)\n",
                            fp->endpoint & USB_ENDPOINT_NUMBER_MASK,
@@ -2017,7 +2090,7 @@ static void proc_dump_substream_formats(snd_usb_substream_t *subs, snd_info_buff
        }
 }
 
-static void proc_dump_substream_status(snd_usb_substream_t *subs, snd_info_buffer_t *buffer)
+static void proc_dump_substream_status(struct snd_usb_substream *subs, struct snd_info_buffer *buffer)
 {
        if (subs->running) {
                unsigned int i;
@@ -2039,9 +2112,9 @@ static void proc_dump_substream_status(snd_usb_substream_t *subs, snd_info_buffe
        }
 }
 
-static void proc_pcm_format_read(snd_info_entry_t *entry, snd_info_buffer_t *buffer)
+static void proc_pcm_format_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
 {
-       snd_usb_stream_t *stream = entry->private_data;
+       struct snd_usb_stream *stream = entry->private_data;
 
        snd_iprintf(buffer, "%s : %s\n", stream->chip->card->longname, stream->pcm->name);
 
@@ -2057,31 +2130,35 @@ static void proc_pcm_format_read(snd_info_entry_t *entry, snd_info_buffer_t *buf
        }
 }
 
-static void proc_pcm_format_add(snd_usb_stream_t *stream)
+static void proc_pcm_format_add(struct snd_usb_stream *stream)
 {
-       snd_info_entry_t *entry;
+       struct snd_info_entry *entry;
        char name[32];
-       snd_card_t *card = stream->chip->card;
+       struct snd_card *card = stream->chip->card;
 
        sprintf(name, "stream%d", stream->pcm_index);
        if (! snd_card_proc_new(card, name, &entry))
-               snd_info_set_text_ops(entry, stream, 1024, proc_pcm_format_read);
+               snd_info_set_text_ops(entry, stream, proc_pcm_format_read);
+}
+
+#else
+
+static inline void proc_pcm_format_add(struct snd_usb_stream *stream)
+{
 }
 
+#endif
 
 /*
  * initialize the substream instance.
  */
 
-static void init_substream(snd_usb_stream_t *as, int stream, struct audioformat *fp)
+static void init_substream(struct snd_usb_stream *as, int stream, struct audioformat *fp)
 {
-       snd_usb_substream_t *subs = &as->substream[stream];
+       struct snd_usb_substream *subs = &as->substream[stream];
 
        INIT_LIST_HEAD(&subs->fmt_list);
        spin_lock_init(&subs->lock);
-       if (stream == SNDRV_PCM_STREAM_PLAYBACK)
-               tasklet_init(&subs->start_period_elapsed, start_period_elapsed,
-                            (unsigned long)subs);
 
        subs->stream = as;
        subs->direction = stream;
@@ -2105,7 +2182,7 @@ static void init_substream(snd_usb_stream_t *as, int stream, struct audioformat
 /*
  * free a substream
  */
-static void free_substream(snd_usb_substream_t *subs)
+static void free_substream(struct snd_usb_substream *subs)
 {
        struct list_head *p, *n;
 
@@ -2122,7 +2199,7 @@ static void free_substream(snd_usb_substream_t *subs)
 /*
  * free a usb stream instance
  */
-static void snd_usb_audio_stream_free(snd_usb_stream_t *stream)
+static void snd_usb_audio_stream_free(struct snd_usb_stream *stream)
 {
        free_substream(&stream->substream[0]);
        free_substream(&stream->substream[1]);
@@ -2130,9 +2207,9 @@ static void snd_usb_audio_stream_free(snd_usb_stream_t *stream)
        kfree(stream);
 }
 
-static void snd_usb_audio_pcm_free(snd_pcm_t *pcm)
+static void snd_usb_audio_pcm_free(struct snd_pcm *pcm)
 {
-       snd_usb_stream_t *stream = pcm->private_data;
+       struct snd_usb_stream *stream = pcm->private_data;
        if (stream) {
                stream->pcm = NULL;
                snd_usb_audio_stream_free(stream);
@@ -2145,16 +2222,16 @@ static void snd_usb_audio_pcm_free(snd_pcm_t *pcm)
  * if a stream with the same endpoint already exists, append to it.
  * if not, create a new pcm stream.
  */
-static int add_audio_endpoint(snd_usb_audio_t *chip, int stream, struct audioformat *fp)
+static int add_audio_endpoint(struct snd_usb_audio *chip, int stream, struct audioformat *fp)
 {
        struct list_head *p;
-       snd_usb_stream_t *as;
-       snd_usb_substream_t *subs;
-       snd_pcm_t *pcm;
+       struct snd_usb_stream *as;
+       struct snd_usb_substream *subs;
+       struct snd_pcm *pcm;
        int err;
 
        list_for_each(p, &chip->pcm_list) {
-               as = list_entry(p, snd_usb_stream_t, list);
+               as = list_entry(p, struct snd_usb_stream, list);
                if (as->fmt_type != fp->fmt_type)
                        continue;
                subs = &as->substream[stream];
@@ -2169,7 +2246,7 @@ static int add_audio_endpoint(snd_usb_audio_t *chip, int stream, struct audiofor
        }
        /* look for an empty stream */
        list_for_each(p, &chip->pcm_list) {
-               as = list_entry(p, snd_usb_stream_t, list);
+               as = list_entry(p, struct snd_usb_stream, list);
                if (as->fmt_type != fp->fmt_type)
                        continue;
                subs = &as->substream[stream];
@@ -2183,10 +2260,9 @@ static int add_audio_endpoint(snd_usb_audio_t *chip, int stream, struct audiofor
        }
 
        /* create a new pcm */
-       as = kmalloc(sizeof(*as), GFP_KERNEL);
+       as = kzalloc(sizeof(*as), GFP_KERNEL);
        if (! as)
                return -ENOMEM;
-       memset(as, 0, sizeof(*as));
        as->pcm_index = chip->pcm_devs;
        as->chip = chip;
        as->fmt_type = fp->fmt_type;
@@ -2221,7 +2297,7 @@ static int add_audio_endpoint(snd_usb_audio_t *chip, int stream, struct audiofor
 /*
  * check if the device uses big-endian samples
  */
-static int is_big_endian_format(snd_usb_audio_t *chip, struct audioformat *fp)
+static int is_big_endian_format(struct snd_usb_audio *chip, struct audioformat *fp)
 {
        switch (chip->usb_id) {
        case USB_ID(0x0763, 0x2001): /* M-Audio Quattro: captured data only */
@@ -2243,7 +2319,7 @@ static int is_big_endian_format(snd_usb_audio_t *chip, struct audioformat *fp)
  * @format: the format tag (wFormatTag)
  * @fmt: the format type descriptor
  */
-static int parse_audio_format_i_type(snd_usb_audio_t *chip, struct audioformat *fp,
+static int parse_audio_format_i_type(struct snd_usb_audio *chip, struct audioformat *fp,
                                     int format, unsigned char *fmt)
 {
        int pcm_format;
@@ -2326,7 +2402,7 @@ static int parse_audio_format_i_type(snd_usb_audio_t *chip, struct audioformat *
  * @offset: the start offset of descriptor pointing the rate type
  *          (7 for type I and II, 8 for type II)
  */
-static int parse_audio_format_rates(snd_usb_audio_t *chip, struct audioformat *fp,
+static int parse_audio_format_rates(struct snd_usb_audio *chip, struct audioformat *fp,
                                    unsigned char *fmt, int offset)
 {
        int nr_rates = fmt[offset];
@@ -2379,7 +2455,7 @@ static int parse_audio_format_rates(snd_usb_audio_t *chip, struct audioformat *f
 /*
  * parse the format type I and III descriptors
  */
-static int parse_audio_format_i(snd_usb_audio_t *chip, struct audioformat *fp,
+static int parse_audio_format_i(struct snd_usb_audio *chip, struct audioformat *fp,
                                int format, unsigned char *fmt)
 {
        int pcm_format;
@@ -2408,7 +2484,7 @@ static int parse_audio_format_i(snd_usb_audio_t *chip, struct audioformat *fp,
 /*
  * prase the format type II descriptor
  */
-static int parse_audio_format_ii(snd_usb_audio_t *chip, struct audioformat *fp,
+static int parse_audio_format_ii(struct snd_usb_audio *chip, struct audioformat *fp,
                                 int format, unsigned char *fmt)
 {
        int brate, framesize;
@@ -2435,7 +2511,7 @@ static int parse_audio_format_ii(snd_usb_audio_t *chip, struct audioformat *fp,
        return parse_audio_format_rates(chip, fp, fmt, 8); /* fmt[8..] sample rates */
 }
 
-static int parse_audio_format(snd_usb_audio_t *chip, struct audioformat *fp,
+static int parse_audio_format(struct snd_usb_audio *chip, struct audioformat *fp,
                              int format, unsigned char *fmt, int stream)
 {
        int err;
@@ -2457,12 +2533,13 @@ static int parse_audio_format(snd_usb_audio_t *chip, struct audioformat *fp,
        if (err < 0)
                return err;
 #if 1
-       /* FIXME: temporary hack for extigy/audigy 2 nx */
+       /* FIXME: temporary hack for extigy/audigy 2 nx/zs */
        /* extigy apparently supports sample rates other than 48k
         * but not in ordinary way.  so we enable only 48k atm.
         */
        if (chip->usb_id == USB_ID(0x041e, 0x3000) ||
-           chip->usb_id == USB_ID(0x041e, 0x3020)) {
+           chip->usb_id == USB_ID(0x041e, 0x3020) ||
+           chip->usb_id == USB_ID(0x041e, 0x3061)) {
                if (fmt[3] == USB_FORMAT_TYPE_I &&
                    fp->rates != SNDRV_PCM_RATE_48000 &&
                    fp->rates != SNDRV_PCM_RATE_96000)
@@ -2472,7 +2549,9 @@ static int parse_audio_format(snd_usb_audio_t *chip, struct audioformat *fp,
        return 0;
 }
 
-static int parse_audio_endpoints(snd_usb_audio_t *chip, int iface_no)
+static int audiophile_skip_setting_quirk(struct snd_usb_audio *chip,
+                                        int iface, int altno);
+static int parse_audio_endpoints(struct snd_usb_audio *chip, int iface_no)
 {
        struct usb_device *dev;
        struct usb_interface *iface;
@@ -2506,6 +2585,12 @@ static int parse_audio_endpoints(snd_usb_audio_t *chip, int iface_no)
                stream = (get_endpoint(alts, 0)->bEndpointAddress & USB_DIR_IN) ?
                        SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
                altno = altsd->bAlternateSetting;
+       
+               /* audiophile usb: skip altsets incompatible with device_setup
+                */
+               if (chip->usb_id == USB_ID(0x0763, 0x2003) && 
+                   audiophile_skip_setting_quirk(chip, iface_no, altno))
+                       continue;
 
                /* get audio formats */
                fmt = snd_usb_find_csint_desc(alts->extra, alts->extralen, NULL, AS_GENERAL);
@@ -2541,18 +2626,18 @@ static int parse_audio_endpoints(snd_usb_audio_t *chip, int iface_no)
                if (!csep && altsd->bNumEndpoints >= 2)
                        csep = snd_usb_find_desc(alts->endpoint[1].extra, alts->endpoint[1].extralen, NULL, USB_DT_CS_ENDPOINT);
                if (!csep || csep[0] < 7 || csep[2] != EP_GENERAL) {
-                       snd_printk(KERN_ERR "%d:%u:%d : no or invalid class specific endpoint descriptor\n",
+                       snd_printk(KERN_WARNING "%d:%u:%d : no or invalid"
+                                  " class specific endpoint descriptor\n",
                                   dev->devnum, iface_no, altno);
-                       continue;
+                       csep = NULL;
                }
 
-               fp = kmalloc(sizeof(*fp), GFP_KERNEL);
+               fp = kzalloc(sizeof(*fp), GFP_KERNEL);
                if (! fp) {
                        snd_printk(KERN_ERR "cannot malloc\n");
                        return -ENOMEM;
                }
 
-               memset(fp, 0, sizeof(*fp));
                fp->iface = iface_no;
                fp->altsetting = altno;
                fp->altset_idx = i;
@@ -2562,7 +2647,7 @@ static int parse_audio_endpoints(snd_usb_audio_t *chip, int iface_no)
                if (snd_usb_get_speed(dev) == USB_SPEED_HIGH)
                        fp->maxpacksize = (((fp->maxpacksize >> 11) & 3) + 1)
                                        * (fp->maxpacksize & 0x7ff);
-               fp->attributes = csep[3];
+               fp->attributes = csep ? csep[3] : 0;
 
                /* some quirks for attributes here */
 
@@ -2600,7 +2685,7 @@ static int parse_audio_endpoints(snd_usb_audio_t *chip, int iface_no)
                        continue;
                }
 
-               snd_printdd(KERN_INFO "%d:%u:%d: add audio endpoint 0x%x\n", dev->devnum, iface_no, i, fp->endpoint);
+               snd_printdd(KERN_INFO "%d:%u:%d: add audio endpoint 0x%x\n", dev->devnum, iface_no, altno, fp->endpoint);
                err = add_audio_endpoint(chip, stream, fp);
                if (err < 0) {
                        kfree(fp->rate_table);
@@ -2623,10 +2708,10 @@ static int parse_audio_endpoints(snd_usb_audio_t *chip, int iface_no)
 static void snd_usb_stream_disconnect(struct list_head *head)
 {
        int idx;
-       snd_usb_stream_t *as;
-       snd_usb_substream_t *subs;
+       struct snd_usb_stream *as;
+       struct snd_usb_substream *subs;
 
-       as = list_entry(head, snd_usb_stream_t, list);
+       as = list_entry(head, struct snd_usb_stream, list);
        for (idx = 0; idx < 2; idx++) {
                subs = &as->substream[idx];
                if (!subs->num_formats)
@@ -2639,7 +2724,7 @@ static void snd_usb_stream_disconnect(struct list_head *head)
 /*
  * parse audio control descriptor and create pcm/midi streams
  */
-static int snd_usb_create_streams(snd_usb_audio_t *chip, int ctrlif)
+static int snd_usb_create_streams(struct snd_usb_audio *chip, int ctrlif)
 {
        struct usb_device *dev = chip->dev;
        struct usb_host_interface *host_iface;
@@ -2706,9 +2791,9 @@ static int snd_usb_create_streams(snd_usb_audio_t *chip, int ctrlif)
 /*
  * create a stream for an endpoint/altsetting without proper descriptors
  */
-static int create_fixed_stream_quirk(snd_usb_audio_t *chip,
+static int create_fixed_stream_quirk(struct snd_usb_audio *chip,
                                     struct usb_interface *iface,
-                                    const snd_usb_audio_quirk_t *quirk)
+                                    const struct snd_usb_audio_quirk *quirk)
 {
        struct audioformat *fp;
        struct usb_host_interface *alts;
@@ -2755,9 +2840,9 @@ static int create_fixed_stream_quirk(snd_usb_audio_t *chip,
 /*
  * create a stream for an interface with proper descriptors
  */
-static int create_standard_interface_quirk(snd_usb_audio_t *chip,
-                                          struct usb_interface *iface,
-                                          const snd_usb_audio_quirk_t *quirk)
+static int create_standard_audio_quirk(struct snd_usb_audio *chip,
+                                      struct usb_interface *iface,
+                                      const struct snd_usb_audio_quirk *quirk)
 {
        struct usb_host_interface *alts;
        struct usb_interface_descriptor *altsd;
@@ -2765,24 +2850,14 @@ static int create_standard_interface_quirk(snd_usb_audio_t *chip,
 
        alts = &iface->altsetting[0];
        altsd = get_iface_desc(alts);
-       switch (quirk->type) {
-       case QUIRK_AUDIO_STANDARD_INTERFACE:
-               err = parse_audio_endpoints(chip, altsd->bInterfaceNumber);
-               if (!err)
-                       usb_set_interface(chip->dev, altsd->bInterfaceNumber, 0); /* reset the current interface */
-               break;
-       case QUIRK_MIDI_STANDARD_INTERFACE:
-               err = snd_usb_create_midi_interface(chip, iface, NULL);
-               break;
-       default:
-               snd_printd(KERN_ERR "invalid quirk type %d\n", quirk->type);
-               return -ENXIO;
-       }
+       err = parse_audio_endpoints(chip, altsd->bInterfaceNumber);
        if (err < 0) {
                snd_printk(KERN_ERR "cannot setup if %d: error %d\n",
                           altsd->bInterfaceNumber, err);
                return err;
        }
+       /* reset the current interface */
+       usb_set_interface(chip->dev, altsd->bInterfaceNumber, 0);
        return 0;
 }
 
@@ -2790,9 +2865,9 @@ static int create_standard_interface_quirk(snd_usb_audio_t *chip,
  * Create a stream for an Edirol UA-700/UA-25 interface.  The only way
  * to detect the sample rate is by looking at wMaxPacketSize.
  */
-static int create_ua700_ua25_quirk(snd_usb_audio_t *chip,
+static int create_ua700_ua25_quirk(struct snd_usb_audio *chip,
                                   struct usb_interface *iface,
-                                  const snd_usb_audio_quirk_t *quirk)
+                                  const struct snd_usb_audio_quirk *quirk)
 {
        static const struct audioformat ua_format = {
                .format = SNDRV_PCM_FORMAT_S24_3LE,
@@ -2814,19 +2889,19 @@ static int create_ua700_ua25_quirk(snd_usb_audio_t *chip,
        altsd = get_iface_desc(alts);
 
        if (altsd->bNumEndpoints == 2) {
-               static const snd_usb_midi_endpoint_info_t ua700_ep = {
+               static const struct snd_usb_midi_endpoint_info ua700_ep = {
                        .out_cables = 0x0003,
                        .in_cables  = 0x0003
                };
-               static const snd_usb_audio_quirk_t ua700_quirk = {
+               static const struct snd_usb_audio_quirk ua700_quirk = {
                        .type = QUIRK_MIDI_FIXED_ENDPOINT,
                        .data = &ua700_ep
                };
-               static const snd_usb_midi_endpoint_info_t ua25_ep = {
+               static const struct snd_usb_midi_endpoint_info ua25_ep = {
                        .out_cables = 0x0001,
                        .in_cables  = 0x0001
                };
-               static const snd_usb_audio_quirk_t ua25_quirk = {
+               static const struct snd_usb_audio_quirk ua25_quirk = {
                        .type = QUIRK_MIDI_FIXED_ENDPOINT,
                        .data = &ua25_ep
                };
@@ -2883,9 +2958,9 @@ static int create_ua700_ua25_quirk(snd_usb_audio_t *chip,
 /*
  * Create a stream for an Edirol UA-1000 interface.
  */
-static int create_ua1000_quirk(snd_usb_audio_t *chip,
+static int create_ua1000_quirk(struct snd_usb_audio *chip,
                               struct usb_interface *iface,
-                              const snd_usb_audio_quirk_t *quirk)
+                              const struct snd_usb_audio_quirk *quirk)
 {
        static const struct audioformat ua1000_format = {
                .format = SNDRV_PCM_FORMAT_S32_LE,
@@ -2904,7 +2979,7 @@ static int create_ua1000_quirk(snd_usb_audio_t *chip,
                return -ENXIO;
        alts = &iface->altsetting[1];
        altsd = get_iface_desc(alts);
-       if (alts->extralen != 11 || alts->extra[1] != CS_AUDIO_INTERFACE ||
+       if (alts->extralen != 11 || alts->extra[1] != USB_DT_CS_INTERFACE ||
            altsd->bNumEndpoints != 1)
                return -ENXIO;
 
@@ -2932,16 +3007,16 @@ static int create_ua1000_quirk(snd_usb_audio_t *chip,
        return 0;
 }
 
-static int snd_usb_create_quirk(snd_usb_audio_t *chip,
+static int snd_usb_create_quirk(struct snd_usb_audio *chip,
                                struct usb_interface *iface,
-                               const snd_usb_audio_quirk_t *quirk);
+                               const struct snd_usb_audio_quirk *quirk);
 
 /*
  * handle the quirks for the contained interfaces
  */
-static int create_composite_quirk(snd_usb_audio_t *chip,
+static int create_composite_quirk(struct snd_usb_audio *chip,
                                  struct usb_interface *iface,
-                                 const snd_usb_audio_quirk_t *quirk)
+                                 const struct snd_usb_audio_quirk *quirk)
 {
        int probed_ifnum = get_iface_desc(iface->altsetting)->bInterfaceNumber;
        int err;
@@ -2962,9 +3037,9 @@ static int create_composite_quirk(snd_usb_audio_t *chip,
        return 0;
 }
 
-static int ignore_interface_quirk(snd_usb_audio_t *chip,
+static int ignore_interface_quirk(struct snd_usb_audio *chip,
                                  struct usb_interface *iface,
-                                 const snd_usb_audio_quirk_t *quirk)
+                                 const struct snd_usb_audio_quirk *quirk)
 {
        return 0;
 }
@@ -3018,6 +3093,71 @@ static int snd_usb_audigy2nx_boot_quirk(struct usb_device *dev)
        return 0;
 }
 
+/*
+ * C-Media CM106/CM106+ have four 16-bit internal registers that are nicely
+ * documented in the device's data sheet.
+ */
+static int snd_usb_cm106_write_int_reg(struct usb_device *dev, int reg, u16 value)
+{
+       u8 buf[4];
+       buf[0] = 0x20;
+       buf[1] = value & 0xff;
+       buf[2] = (value >> 8) & 0xff;
+       buf[3] = reg;
+       return snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), USB_REQ_SET_CONFIGURATION,
+                              USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_ENDPOINT,
+                              0, 0, &buf, 4, 1000);
+}
+
+static int snd_usb_cm106_boot_quirk(struct usb_device *dev)
+{
+       /*
+        * Enable line-out driver mode, set headphone source to front
+        * channels, enable stereo mic.
+        */
+       return snd_usb_cm106_write_int_reg(dev, 2, 0x8004);
+}
+
+
+/*
+ * Setup quirks
+ */
+#define AUDIOPHILE_SET                 0x01 /* if set, parse device_setup */
+#define AUDIOPHILE_SET_DTS              0x02 /* if set, enable DTS Digital Output */
+#define AUDIOPHILE_SET_96K              0x04 /* 48-96KHz rate if set, 8-48KHz otherwise */
+#define AUDIOPHILE_SET_24B             0x08 /* 24bits sample if set, 16bits otherwise */
+#define AUDIOPHILE_SET_DI              0x10 /* if set, enable Digital Input */
+#define AUDIOPHILE_SET_MASK            0x1F /* bit mask for setup value */
+#define AUDIOPHILE_SET_24B_48K_DI      0x19 /* value for 24bits+48KHz+Digital Input */
+#define AUDIOPHILE_SET_24B_48K_NOTDI   0x09 /* value for 24bits+48KHz+No Digital Input */
+#define AUDIOPHILE_SET_16B_48K_DI      0x11 /* value for 16bits+48KHz+Digital Input */
+#define AUDIOPHILE_SET_16B_48K_NOTDI   0x01 /* value for 16bits+48KHz+No Digital Input */
+
+static int audiophile_skip_setting_quirk(struct snd_usb_audio *chip,
+                                        int iface, int altno)
+{
+       if (device_setup[chip->index] & AUDIOPHILE_SET) {
+               if ((device_setup[chip->index] & AUDIOPHILE_SET_DTS)
+                   && altno != 6)
+                       return 1; /* skip this altsetting */
+               if ((device_setup[chip->index] & AUDIOPHILE_SET_96K)
+                   && altno != 1)
+                       return 1; /* skip this altsetting */
+               if ((device_setup[chip->index] & AUDIOPHILE_SET_MASK) ==
+                   AUDIOPHILE_SET_24B_48K_DI && altno != 2)
+                       return 1; /* skip this altsetting */
+               if ((device_setup[chip->index] & AUDIOPHILE_SET_MASK) ==
+                   AUDIOPHILE_SET_24B_48K_NOTDI && altno != 3)
+                       return 1; /* skip this altsetting */
+               if ((device_setup[chip->index] & AUDIOPHILE_SET_MASK) ==
+                   AUDIOPHILE_SET_16B_48K_DI && altno != 4)
+                       return 1; /* skip this altsetting */
+               if ((device_setup[chip->index] & AUDIOPHILE_SET_MASK) ==
+                   AUDIOPHILE_SET_16B_48K_NOTDI && altno != 5)
+                       return 1; /* skip this altsetting */
+       }       
+       return 0; /* keep this altsetting */
+}
 
 /*
  * audio-interface quirks
@@ -3027,12 +3167,12 @@ static int snd_usb_audigy2nx_boot_quirk(struct usb_device *dev)
  * after this.
  * returns a negative value at error.
  */
-static int snd_usb_create_quirk(snd_usb_audio_t *chip,
+static int snd_usb_create_quirk(struct snd_usb_audio *chip,
                                struct usb_interface *iface,
-                               const snd_usb_audio_quirk_t *quirk)
+                               const struct snd_usb_audio_quirk *quirk)
 {
-       typedef int (*quirk_func_t)(snd_usb_audio_t *, struct usb_interface *,
-                                   const snd_usb_audio_quirk_t *);
+       typedef int (*quirk_func_t)(struct snd_usb_audio *, struct usb_interface *,
+                                   const struct snd_usb_audio_quirk *);
        static const quirk_func_t quirk_funcs[] = {
                [QUIRK_IGNORE_INTERFACE] = ignore_interface_quirk,
                [QUIRK_COMPOSITE] = create_composite_quirk,
@@ -3043,8 +3183,8 @@ static int snd_usb_create_quirk(snd_usb_audio_t *chip,
                [QUIRK_MIDI_NOVATION] = snd_usb_create_midi_interface,
                [QUIRK_MIDI_RAW] = snd_usb_create_midi_interface,
                [QUIRK_MIDI_EMAGIC] = snd_usb_create_midi_interface,
-               [QUIRK_MIDI_MIDITECH] = snd_usb_create_midi_interface,
-               [QUIRK_AUDIO_STANDARD_INTERFACE] = create_standard_interface_quirk,
+               [QUIRK_MIDI_CME] = snd_usb_create_midi_interface,
+               [QUIRK_AUDIO_STANDARD_INTERFACE] = create_standard_audio_quirk,
                [QUIRK_AUDIO_FIXED_ENDPOINT] = create_fixed_stream_quirk,
                [QUIRK_AUDIO_EDIROL_UA700_UA25] = create_ua700_ua25_quirk,
                [QUIRK_AUDIO_EDIROL_UA1000] = create_ua1000_quirk,
@@ -3062,29 +3202,29 @@ static int snd_usb_create_quirk(snd_usb_audio_t *chip,
 /*
  * common proc files to show the usb device info
  */
-static void proc_audio_usbbus_read(snd_info_entry_t *entry, snd_info_buffer_t *buffer)
+static void proc_audio_usbbus_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
 {
-       snd_usb_audio_t *chip = entry->private_data;
+       struct snd_usb_audio *chip = entry->private_data;
        if (! chip->shutdown)
                snd_iprintf(buffer, "%03d/%03d\n", chip->dev->bus->busnum, chip->dev->devnum);
 }
 
-static void proc_audio_usbid_read(snd_info_entry_t *entry, snd_info_buffer_t *buffer)
+static void proc_audio_usbid_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
 {
-       snd_usb_audio_t *chip = entry->private_data;
+       struct snd_usb_audio *chip = entry->private_data;
        if (! chip->shutdown)
                snd_iprintf(buffer, "%04x:%04x\n", 
                            USB_ID_VENDOR(chip->usb_id),
                            USB_ID_PRODUCT(chip->usb_id));
 }
 
-static void snd_usb_audio_create_proc(snd_usb_audio_t *chip)
+static void snd_usb_audio_create_proc(struct snd_usb_audio *chip)
 {
-       snd_info_entry_t *entry;
+       struct snd_info_entry *entry;
        if (! snd_card_proc_new(chip->card, "usbbus", &entry))
-               snd_info_set_text_ops(entry, chip, 1024, proc_audio_usbbus_read);
+               snd_info_set_text_ops(entry, chip, proc_audio_usbbus_read);
        if (! snd_card_proc_new(chip->card, "usbid", &entry))
-               snd_info_set_text_ops(entry, chip, 1024, proc_audio_usbid_read);
+               snd_info_set_text_ops(entry, chip, proc_audio_usbid_read);
 }
 
 /*
@@ -3094,15 +3234,15 @@ static void snd_usb_audio_create_proc(snd_usb_audio_t *chip)
  *
  */
 
-static int snd_usb_audio_free(snd_usb_audio_t *chip)
+static int snd_usb_audio_free(struct snd_usb_audio *chip)
 {
        kfree(chip);
        return 0;
 }
 
-static int snd_usb_audio_dev_free(snd_device_t *device)
+static int snd_usb_audio_dev_free(struct snd_device *device)
 {
-       snd_usb_audio_t *chip = device->device_data;
+       struct snd_usb_audio *chip = device->device_data;
        return snd_usb_audio_free(chip);
 }
 
@@ -3111,14 +3251,14 @@ static int snd_usb_audio_dev_free(snd_device_t *device)
  * create a chip instance and set its names.
  */
 static int snd_usb_audio_create(struct usb_device *dev, int idx,
-                               const snd_usb_audio_quirk_t *quirk,
-                               snd_usb_audio_t **rchip)
+                               const struct snd_usb_audio_quirk *quirk,
+                               struct snd_usb_audio **rchip)
 {
-       snd_card_t *card;
-       snd_usb_audio_t *chip;
+       struct snd_card *card;
+       struct snd_usb_audio *chip;
        int err, len;
        char component[14];
-       static snd_device_ops_t ops = {
+       static struct snd_device_ops ops = {
                .dev_free =     snd_usb_audio_dev_free,
        };
 
@@ -3222,10 +3362,9 @@ static void *snd_usb_audio_probe(struct usb_device *dev,
                                 struct usb_interface *intf,
                                 const struct usb_device_id *usb_id)
 {
-       struct usb_host_config *config = dev->actconfig;
-       const snd_usb_audio_quirk_t *quirk = (const snd_usb_audio_quirk_t *)usb_id->driver_info;
+       const struct snd_usb_audio_quirk *quirk = (const struct snd_usb_audio_quirk *)usb_id->driver_info;
        int i, err;
-       snd_usb_audio_t *chip;
+       struct snd_usb_audio *chip;
        struct usb_host_interface *alts;
        int ifnum;
        u32 id;
@@ -3243,7 +3382,6 @@ static void *snd_usb_audio_probe(struct usb_device *dev,
        if (id == USB_ID(0x041e, 0x3000)) {
                if (snd_usb_extigy_boot_quirk(dev, intf) < 0)
                        goto __err_val;
-               config = dev->actconfig;
        }
        /* SB Audigy 2 NX needs its own boot-up magic, too */
        if (id == USB_ID(0x041e, 0x3020)) {
@@ -3251,13 +3389,19 @@ static void *snd_usb_audio_probe(struct usb_device *dev,
                        goto __err_val;
        }
 
+       /* C-Media CM106 / Turtle Beach Audio Advantage Roadie */
+       if (id == USB_ID(0x10f5, 0x0200)) {
+               if (snd_usb_cm106_boot_quirk(dev) < 0)
+                       goto __err_val;
+       }
+
        /*
         * found a config.  now register to ALSA
         */
 
        /* check whether it's already registered */
        chip = NULL;
-       down(&register_mutex);
+       mutex_lock(&register_mutex);
        for (i = 0; i < SNDRV_CARDS; i++) {
                if (usb_chip[i] && usb_chip[i]->dev == dev) {
                        if (usb_chip[i]->shutdown) {
@@ -3272,11 +3416,6 @@ static void *snd_usb_audio_probe(struct usb_device *dev,
                /* it's a fresh one.
                 * now look for an empty slot and create a new card instance
                 */
-               /* first, set the current configuration for this device */
-               if (usb_reset_configuration(dev) < 0) {
-                       snd_printk(KERN_ERR "cannot reset configuration (value 0x%x)\n", get_cfg_desc(config)->bConfigurationValue);
-                       goto __error;
-               }
                for (i = 0; i < SNDRV_CARDS; i++)
                        if (enable[i] && ! usb_chip[i] &&
                            (vid[i] == -1 || vid[i] == USB_ID_VENDOR(id)) &&
@@ -3315,13 +3454,13 @@ static void *snd_usb_audio_probe(struct usb_device *dev,
 
        usb_chip[chip->index] = chip;
        chip->num_interfaces++;
-       up(&register_mutex);
+       mutex_unlock(&register_mutex);
        return chip;
 
  __error:
        if (chip && !chip->num_interfaces)
                snd_card_free(chip->card);
-       up(&register_mutex);
+       mutex_unlock(&register_mutex);
  __err_val:
        return NULL;
 }
@@ -3332,8 +3471,8 @@ static void *snd_usb_audio_probe(struct usb_device *dev,
  */
 static void snd_usb_audio_disconnect(struct usb_device *dev, void *ptr)
 {
-       snd_usb_audio_t *chip;
-       snd_card_t *card;
+       struct snd_usb_audio *chip;
+       struct snd_card *card;
        struct list_head *p;
 
        if (ptr == (void *)-1L)
@@ -3341,7 +3480,7 @@ static void snd_usb_audio_disconnect(struct usb_device *dev, void *ptr)
 
        chip = ptr;
        card = chip->card;
-       down(&register_mutex);
+       mutex_lock(&register_mutex);
        chip->shutdown = 1;
        chip->num_interfaces--;
        if (chip->num_interfaces <= 0) {
@@ -3359,10 +3498,10 @@ static void snd_usb_audio_disconnect(struct usb_device *dev, void *ptr)
                        snd_usb_mixer_disconnect(p);
                }
                usb_chip[chip->index] = NULL;
-               up(&register_mutex);
-               snd_card_free(card);
+               mutex_unlock(&register_mutex);
+               snd_card_free_when_closed(card);
        } else {
-               up(&register_mutex);
+               mutex_unlock(&register_mutex);
        }
 }