#include <linux/freezer.h>
#include <linux/utsname.h>
-#include <asm/unaligned.h>
-
#include <linux/usb/ch9.h>
#include <linux/usb/gadget.h>
#define DRIVER_NAME "g_file_storage"
#define DRIVER_VERSION "20 November 2008"
-static const char longname[] = DRIVER_DESC;
-static const char shortname[] = DRIVER_NAME;
+static char fsg_string_manufacturer[64];
+static const char fsg_string_product[] = DRIVER_DESC;
+static char fsg_string_serial[13];
+static const char fsg_string_config[] = "Self-powered";
+static const char fsg_string_interface[] = "Mass Storage";
+
+
+#include "storage_common.c"
+
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_AUTHOR("Alan Stern");
MODULE_LICENSE("Dual BSD/GPL");
-/* Thanks to NetChip Technologies for donating this product ID.
- *
- * DO NOT REUSE THESE IDs with any other driver!! Ever!!
- * Instead: allocate your own, using normal USB-IF procedures. */
-#define DRIVER_VENDOR_ID 0x0525 // NetChip
-#define DRIVER_PRODUCT_ID 0xa4a5 // Linux-USB File-backed Storage Gadget
-
-
/*
* This driver assumes self-powered hardware and has no way for users to
* trigger remote wakeup. It uses autoconfiguration to select endpoints
/*-------------------------------------------------------------------------*/
-#define LDBG(lun,fmt,args...) \
- dev_dbg(&(lun)->dev , fmt , ## args)
-#define MDBG(fmt,args...) \
- pr_debug(DRIVER_NAME ": " fmt , ## args)
-
-#ifndef DEBUG
-#undef VERBOSE_DEBUG
-#undef DUMP_MSGS
-#endif /* !DEBUG */
-
-#ifdef VERBOSE_DEBUG
-#define VLDBG LDBG
-#else
-#define VLDBG(lun,fmt,args...) \
- do { } while (0)
-#endif /* VERBOSE_DEBUG */
-
-#define LERROR(lun,fmt,args...) \
- dev_err(&(lun)->dev , fmt , ## args)
-#define LWARN(lun,fmt,args...) \
- dev_warn(&(lun)->dev , fmt , ## args)
-#define LINFO(lun,fmt,args...) \
- dev_info(&(lun)->dev , fmt , ## args)
-
-#define MINFO(fmt,args...) \
- pr_info(DRIVER_NAME ": " fmt , ## args)
-
-#define DBG(d, fmt, args...) \
- dev_dbg(&(d)->gadget->dev , fmt , ## args)
-#define VDBG(d, fmt, args...) \
- dev_vdbg(&(d)->gadget->dev , fmt , ## args)
-#define ERROR(d, fmt, args...) \
- dev_err(&(d)->gadget->dev , fmt , ## args)
-#define WARNING(d, fmt, args...) \
- dev_warn(&(d)->gadget->dev , fmt , ## args)
-#define INFO(d, fmt, args...) \
- dev_info(&(d)->gadget->dev , fmt , ## args)
-
-
-/*-------------------------------------------------------------------------*/
/* Encapsulate the module parameter settings */
-#define MAX_LUNS 8
-
static struct {
- char *file[MAX_LUNS];
- int ro[MAX_LUNS];
+ char *file[FSG_MAX_LUNS];
+ int ro[FSG_MAX_LUNS];
unsigned int num_filenames;
unsigned int num_ros;
unsigned int nluns;
.removable = 0,
.can_stall = 1,
.cdrom = 0,
- .vendor = DRIVER_VENDOR_ID,
- .product = DRIVER_PRODUCT_ID,
+ .vendor = FSG_VENDOR_ID,
+ .product = FSG_PRODUCT_ID,
.release = 0xffff, // Use controller chip type
.buflen = 16384,
};
#endif /* CONFIG_USB_FILE_STORAGE_TEST */
-/*-------------------------------------------------------------------------*/
-
-/* SCSI device types */
-#define TYPE_DISK 0x00
-#define TYPE_CDROM 0x05
-
-/* USB protocol value = the transport method */
-#define USB_PR_CBI 0x00 // Control/Bulk/Interrupt
-#define USB_PR_CB 0x01 // Control/Bulk w/o interrupt
-#define USB_PR_BULK 0x50 // Bulk-only
-
-/* USB subclass value = the protocol encapsulation */
-#define USB_SC_RBC 0x01 // Reduced Block Commands (flash)
-#define USB_SC_8020 0x02 // SFF-8020i, MMC-2, ATAPI (CD-ROM)
-#define USB_SC_QIC 0x03 // QIC-157 (tape)
-#define USB_SC_UFI 0x04 // UFI (floppy)
-#define USB_SC_8070 0x05 // SFF-8070i (removable)
-#define USB_SC_SCSI 0x06 // Transparent SCSI
-
-/* Bulk-only data structures */
-
-/* Command Block Wrapper */
-struct bulk_cb_wrap {
- __le32 Signature; // Contains 'USBC'
- u32 Tag; // Unique per command id
- __le32 DataTransferLength; // Size of the data
- u8 Flags; // Direction in bit 7
- u8 Lun; // LUN (normally 0)
- u8 Length; // Of the CDB, <= MAX_COMMAND_SIZE
- u8 CDB[16]; // Command Data Block
-};
-
-#define USB_BULK_CB_WRAP_LEN 31
-#define USB_BULK_CB_SIG 0x43425355 // Spells out USBC
-#define USB_BULK_IN_FLAG 0x80
-
-/* Command Status Wrapper */
-struct bulk_cs_wrap {
- __le32 Signature; // Should = 'USBS'
- u32 Tag; // Same as original command
- __le32 Residue; // Amount not transferred
- u8 Status; // See below
-};
-
-#define USB_BULK_CS_WRAP_LEN 13
-#define USB_BULK_CS_SIG 0x53425355 // Spells out 'USBS'
-#define USB_STATUS_PASS 0
-#define USB_STATUS_FAIL 1
-#define USB_STATUS_PHASE_ERROR 2
-
-/* Bulk-only class specific requests */
-#define USB_BULK_RESET_REQUEST 0xff
-#define USB_BULK_GET_MAX_LUN_REQUEST 0xfe
-
-
-/* CBI Interrupt data structure */
-struct interrupt_data {
- u8 bType;
- u8 bValue;
-};
-
-#define CBI_INTERRUPT_DATA_LEN 2
-
-/* CBI Accept Device-Specific Command request */
-#define USB_CBI_ADSC_REQUEST 0x00
-
-
-#define MAX_COMMAND_SIZE 16 // Length of a SCSI Command Data Block
-
-/* SCSI commands that we recognize */
-#define SC_FORMAT_UNIT 0x04
-#define SC_INQUIRY 0x12
-#define SC_MODE_SELECT_6 0x15
-#define SC_MODE_SELECT_10 0x55
-#define SC_MODE_SENSE_6 0x1a
-#define SC_MODE_SENSE_10 0x5a
-#define SC_PREVENT_ALLOW_MEDIUM_REMOVAL 0x1e
-#define SC_READ_6 0x08
-#define SC_READ_10 0x28
-#define SC_READ_12 0xa8
-#define SC_READ_CAPACITY 0x25
-#define SC_READ_FORMAT_CAPACITIES 0x23
-#define SC_READ_HEADER 0x44
-#define SC_READ_TOC 0x43
-#define SC_RELEASE 0x17
-#define SC_REQUEST_SENSE 0x03
-#define SC_RESERVE 0x16
-#define SC_SEND_DIAGNOSTIC 0x1d
-#define SC_START_STOP_UNIT 0x1b
-#define SC_SYNCHRONIZE_CACHE 0x35
-#define SC_TEST_UNIT_READY 0x00
-#define SC_VERIFY 0x2f
-#define SC_WRITE_6 0x0a
-#define SC_WRITE_10 0x2a
-#define SC_WRITE_12 0xaa
-
-/* SCSI Sense Key/Additional Sense Code/ASC Qualifier values */
-#define SS_NO_SENSE 0
-#define SS_COMMUNICATION_FAILURE 0x040800
-#define SS_INVALID_COMMAND 0x052000
-#define SS_INVALID_FIELD_IN_CDB 0x052400
-#define SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE 0x052100
-#define SS_LOGICAL_UNIT_NOT_SUPPORTED 0x052500
-#define SS_MEDIUM_NOT_PRESENT 0x023a00
-#define SS_MEDIUM_REMOVAL_PREVENTED 0x055302
-#define SS_NOT_READY_TO_READY_TRANSITION 0x062800
-#define SS_RESET_OCCURRED 0x062900
-#define SS_SAVING_PARAMETERS_NOT_SUPPORTED 0x053900
-#define SS_UNRECOVERED_READ_ERROR 0x031100
-#define SS_WRITE_ERROR 0x030c02
-#define SS_WRITE_PROTECTED 0x072700
-
-#define SK(x) ((u8) ((x) >> 16)) // Sense Key byte, etc.
-#define ASC(x) ((u8) ((x) >> 8))
-#define ASCQ(x) ((u8) (x))
-
-
-/*-------------------------------------------------------------------------*/
-
/*
* These definitions will permit the compiler to avoid generating code for
* parts of the driver that aren't used in the non-TEST version. Even gcc
#endif /* CONFIG_USB_FILE_STORAGE_TEST */
-struct lun {
- struct file *filp;
- loff_t file_length;
- loff_t num_sectors;
-
- unsigned int ro : 1;
- unsigned int prevent_medium_removal : 1;
- unsigned int registered : 1;
- unsigned int info_valid : 1;
-
- u32 sense_data;
- u32 sense_data_info;
- u32 unit_attention_data;
-
- struct device dev;
-};
-
-#define backing_file_is_open(curlun) ((curlun)->filp != NULL)
-
-static struct lun *dev_to_lun(struct device *dev)
-{
- return container_of(dev, struct lun, dev);
-}
-
-
-/* Big enough to hold our biggest descriptor */
-#define EP0_BUFSIZE 256
-#define DELAYED_STATUS (EP0_BUFSIZE + 999) // An impossibly large value
-
-/* Number of buffers we will use. 2 is enough for double-buffering */
-#define NUM_BUFFERS 2
-
-enum fsg_buffer_state {
- BUF_STATE_EMPTY = 0,
- BUF_STATE_FULL,
- BUF_STATE_BUSY
-};
-
-struct fsg_buffhd {
- void *buf;
- enum fsg_buffer_state state;
- struct fsg_buffhd *next;
-
- /* The NetChip 2280 is faster, and handles some protocol faults
- * better, if we don't submit any short bulk-out read requests.
- * So we will record the intended request length here. */
- unsigned int bulk_out_intended_length;
-
- struct usb_request *inreq;
- int inreq_busy;
- struct usb_request *outreq;
- int outreq_busy;
-};
-
-enum fsg_state {
- FSG_STATE_COMMAND_PHASE = -10, // This one isn't used anywhere
- FSG_STATE_DATA_PHASE,
- FSG_STATE_STATUS_PHASE,
-
- FSG_STATE_IDLE = 0,
- FSG_STATE_ABORT_BULK_OUT,
- FSG_STATE_RESET,
- FSG_STATE_INTERFACE_CHANGE,
- FSG_STATE_CONFIG_CHANGE,
- FSG_STATE_DISCONNECT,
- FSG_STATE_EXIT,
- FSG_STATE_TERMINATED
-};
+/*-------------------------------------------------------------------------*/
-enum data_direction {
- DATA_DIR_UNKNOWN = 0,
- DATA_DIR_FROM_HOST,
- DATA_DIR_TO_HOST,
- DATA_DIR_NONE
-};
struct fsg_dev {
/* lock protects: state, all the req_busy's, and cbbuf_cmnd */
int intreq_busy;
struct fsg_buffhd *intr_buffhd;
- unsigned int bulk_out_maxpacket;
+ unsigned int bulk_out_maxpacket;
enum fsg_state state; // For exception handling
unsigned int exception_req_tag;
struct fsg_buffhd *next_buffhd_to_fill;
struct fsg_buffhd *next_buffhd_to_drain;
- struct fsg_buffhd buffhds[NUM_BUFFERS];
+ struct fsg_buffhd buffhds[FSG_NUM_BUFFERS];
int thread_wakeup_needed;
struct completion thread_notifier;
u8 cbbuf_cmnd[MAX_COMMAND_SIZE];
unsigned int nluns;
- struct lun *luns;
- struct lun *curlun;
+ struct fsg_lun *luns;
+ struct fsg_lun *curlun;
};
typedef void (*fsg_routine_t)(struct fsg_dev *);
static struct fsg_dev *the_fsg;
static struct usb_gadget_driver fsg_driver;
-static void close_backing_file(struct lun *curlun);
-
/*-------------------------------------------------------------------------*/
-#ifdef DUMP_MSGS
-
-static void dump_msg(struct fsg_dev *fsg, const char *label,
- const u8 *buf, unsigned int length)
-{
- if (length < 512) {
- DBG(fsg, "%s, length %u:\n", label, length);
- print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET,
- 16, 1, buf, length, 0);
- }
-}
-
-static void dump_cdb(struct fsg_dev *fsg)
-{}
-
-#else
-
-static void dump_msg(struct fsg_dev *fsg, const char *label,
- const u8 *buf, unsigned int length)
-{}
-
-#ifdef VERBOSE_DEBUG
-
-static void dump_cdb(struct fsg_dev *fsg)
-{
- print_hex_dump(KERN_DEBUG, "SCSI CDB: ", DUMP_PREFIX_NONE,
- 16, 1, fsg->cmnd, fsg->cmnd_size, 0);
-}
-
-#else
-
-static void dump_cdb(struct fsg_dev *fsg)
-{}
-
-#endif /* VERBOSE_DEBUG */
-#endif /* DUMP_MSGS */
-
-
static int fsg_set_halt(struct fsg_dev *fsg, struct usb_ep *ep)
{
const char *name;
/*-------------------------------------------------------------------------*/
-/* Routines for unaligned data access */
-
-static u32 get_unaligned_be24(u8 *buf)
-{
- return 0xffffff & (u32) get_unaligned_be32(buf - 1);
-}
-
-
-/*-------------------------------------------------------------------------*/
-
/*
* DESCRIPTORS ... most are static, but strings and (full) configuration
* descriptors are built on demand. Also the (static) config and interface
* descriptors are adjusted during fsg_bind().
*/
-#define STRING_MANUFACTURER 1
-#define STRING_PRODUCT 2
-#define STRING_SERIAL 3
-#define STRING_CONFIG 4
-#define STRING_INTERFACE 5
/* There is only one configuration. */
#define CONFIG_VALUE 1
.bDeviceClass = USB_CLASS_PER_INTERFACE,
/* The next three values can be overridden by module parameters */
- .idVendor = cpu_to_le16(DRIVER_VENDOR_ID),
- .idProduct = cpu_to_le16(DRIVER_PRODUCT_ID),
+ .idVendor = cpu_to_le16(FSG_VENDOR_ID),
+ .idProduct = cpu_to_le16(FSG_PRODUCT_ID),
.bcdDevice = cpu_to_le16(0xffff),
- .iManufacturer = STRING_MANUFACTURER,
- .iProduct = STRING_PRODUCT,
- .iSerialNumber = STRING_SERIAL,
+ .iManufacturer = FSG_STRING_MANUFACTURER,
+ .iProduct = FSG_STRING_PRODUCT,
+ .iSerialNumber = FSG_STRING_SERIAL,
.bNumConfigurations = 1,
};
/* wTotalLength computed by usb_gadget_config_buf() */
.bNumInterfaces = 1,
.bConfigurationValue = CONFIG_VALUE,
- .iConfiguration = STRING_CONFIG,
+ .iConfiguration = FSG_STRING_CONFIG,
.bmAttributes = USB_CONFIG_ATT_ONE | USB_CONFIG_ATT_SELFPOWER,
.bMaxPower = CONFIG_USB_GADGET_VBUS_DRAW / 2,
};
-static struct usb_otg_descriptor
-otg_desc = {
- .bLength = sizeof(otg_desc),
- .bDescriptorType = USB_DT_OTG,
-
- .bmAttributes = USB_OTG_SRP,
-};
-
-/* There is only one interface. */
-static struct usb_interface_descriptor
-intf_desc = {
- .bLength = sizeof intf_desc,
- .bDescriptorType = USB_DT_INTERFACE,
-
- .bNumEndpoints = 2, // Adjusted during fsg_bind()
- .bInterfaceClass = USB_CLASS_MASS_STORAGE,
- .bInterfaceSubClass = USB_SC_SCSI, // Adjusted during fsg_bind()
- .bInterfaceProtocol = USB_PR_BULK, // Adjusted during fsg_bind()
- .iInterface = STRING_INTERFACE,
-};
-
-/* Three full-speed endpoint descriptors: bulk-in, bulk-out,
- * and interrupt-in. */
-
-static struct usb_endpoint_descriptor
-fs_bulk_in_desc = {
- .bLength = USB_DT_ENDPOINT_SIZE,
- .bDescriptorType = USB_DT_ENDPOINT,
-
- .bEndpointAddress = USB_DIR_IN,
- .bmAttributes = USB_ENDPOINT_XFER_BULK,
- /* wMaxPacketSize set by autoconfiguration */
-};
-
-static struct usb_endpoint_descriptor
-fs_bulk_out_desc = {
- .bLength = USB_DT_ENDPOINT_SIZE,
- .bDescriptorType = USB_DT_ENDPOINT,
-
- .bEndpointAddress = USB_DIR_OUT,
- .bmAttributes = USB_ENDPOINT_XFER_BULK,
- /* wMaxPacketSize set by autoconfiguration */
-};
-
-static struct usb_endpoint_descriptor
-fs_intr_in_desc = {
- .bLength = USB_DT_ENDPOINT_SIZE,
- .bDescriptorType = USB_DT_ENDPOINT,
-
- .bEndpointAddress = USB_DIR_IN,
- .bmAttributes = USB_ENDPOINT_XFER_INT,
- .wMaxPacketSize = cpu_to_le16(2),
- .bInterval = 32, // frames -> 32 ms
-};
-
-static const struct usb_descriptor_header *fs_function[] = {
- (struct usb_descriptor_header *) &otg_desc,
- (struct usb_descriptor_header *) &intf_desc,
- (struct usb_descriptor_header *) &fs_bulk_in_desc,
- (struct usb_descriptor_header *) &fs_bulk_out_desc,
- (struct usb_descriptor_header *) &fs_intr_in_desc,
- NULL,
-};
-#define FS_FUNCTION_PRE_EP_ENTRIES 2
-
-
-/*
- * USB 2.0 devices need to expose both high speed and full speed
- * descriptors, unless they only run at full speed.
- *
- * That means alternate endpoint descriptors (bigger packets)
- * and a "device qualifier" ... plus more construction options
- * for the config descriptor.
- */
static struct usb_qualifier_descriptor
dev_qualifier = {
.bLength = sizeof dev_qualifier,
.bNumConfigurations = 1,
};
-static struct usb_endpoint_descriptor
-hs_bulk_in_desc = {
- .bLength = USB_DT_ENDPOINT_SIZE,
- .bDescriptorType = USB_DT_ENDPOINT,
-
- /* bEndpointAddress copied from fs_bulk_in_desc during fsg_bind() */
- .bmAttributes = USB_ENDPOINT_XFER_BULK,
- .wMaxPacketSize = cpu_to_le16(512),
-};
-
-static struct usb_endpoint_descriptor
-hs_bulk_out_desc = {
- .bLength = USB_DT_ENDPOINT_SIZE,
- .bDescriptorType = USB_DT_ENDPOINT,
-
- /* bEndpointAddress copied from fs_bulk_out_desc during fsg_bind() */
- .bmAttributes = USB_ENDPOINT_XFER_BULK,
- .wMaxPacketSize = cpu_to_le16(512),
- .bInterval = 1, // NAK every 1 uframe
-};
-
-static struct usb_endpoint_descriptor
-hs_intr_in_desc = {
- .bLength = USB_DT_ENDPOINT_SIZE,
- .bDescriptorType = USB_DT_ENDPOINT,
-
- /* bEndpointAddress copied from fs_intr_in_desc during fsg_bind() */
- .bmAttributes = USB_ENDPOINT_XFER_INT,
- .wMaxPacketSize = cpu_to_le16(2),
- .bInterval = 9, // 2**(9-1) = 256 uframes -> 32 ms
-};
-
-static const struct usb_descriptor_header *hs_function[] = {
- (struct usb_descriptor_header *) &otg_desc,
- (struct usb_descriptor_header *) &intf_desc,
- (struct usb_descriptor_header *) &hs_bulk_in_desc,
- (struct usb_descriptor_header *) &hs_bulk_out_desc,
- (struct usb_descriptor_header *) &hs_intr_in_desc,
- NULL,
-};
-#define HS_FUNCTION_PRE_EP_ENTRIES 2
-
-/* Maxpacket and other transfer characteristics vary by speed. */
-static struct usb_endpoint_descriptor *
-ep_desc(struct usb_gadget *g, struct usb_endpoint_descriptor *fs,
- struct usb_endpoint_descriptor *hs)
-{
- if (gadget_is_dualspeed(g) && g->speed == USB_SPEED_HIGH)
- return hs;
- return fs;
-}
-
-
-/* The CBI specification limits the serial string to 12 uppercase hexadecimal
- * characters. */
-static char manufacturer[64];
-static char serial[13];
-
-/* Static strings, in UTF-8 (for simplicity we use only ASCII characters) */
-static struct usb_string strings[] = {
- {STRING_MANUFACTURER, manufacturer},
- {STRING_PRODUCT, longname},
- {STRING_SERIAL, serial},
- {STRING_CONFIG, "Self-powered"},
- {STRING_INTERFACE, "Mass Storage"},
- {}
-};
-
-static struct usb_gadget_strings stringtab = {
- .language = 0x0409, // en-us
- .strings = strings,
-};
/*
if (gadget_is_dualspeed(gadget) && type == USB_DT_OTHER_SPEED_CONFIG)
speed = (USB_SPEED_FULL + USB_SPEED_HIGH) - speed;
- if (gadget_is_dualspeed(gadget) && speed == USB_SPEED_HIGH)
- function = hs_function;
- else
- function = fs_function;
+ function = gadget_is_dualspeed(gadget) && speed == USB_SPEED_HIGH
+ ? (const struct usb_descriptor_header **)fsg_hs_function
+ : (const struct usb_descriptor_header **)fsg_fs_function;
/* for now, don't advertise srp-only devices */
if (!gadget_is_otg(gadget))
VDBG(fsg, "get string descriptor\n");
/* wIndex == language code */
- value = usb_gadget_get_string(&stringtab,
+ value = usb_gadget_get_string(&fsg_stringtab,
w_value & 0xff, req->buf);
break;
}
static int do_read(struct fsg_dev *fsg)
{
- struct lun *curlun = fsg->curlun;
+ struct fsg_lun *curlun = fsg->curlun;
u32 lba;
struct fsg_buffhd *bh;
int rc;
static int do_write(struct fsg_dev *fsg)
{
- struct lun *curlun = fsg->curlun;
+ struct fsg_lun *curlun = fsg->curlun;
u32 lba;
struct fsg_buffhd *bh;
int get_some_more;
/*-------------------------------------------------------------------------*/
-/* Sync the file data, don't bother with the metadata.
- * This code was copied from fs/buffer.c:sys_fdatasync(). */
-static int fsync_sub(struct lun *curlun)
-{
- struct file *filp = curlun->filp;
-
- if (curlun->ro || !filp)
- return 0;
- return vfs_fsync(filp, filp->f_path.dentry, 1);
-}
-
-static void fsync_all(struct fsg_dev *fsg)
-{
- int i;
-
- for (i = 0; i < fsg->nluns; ++i)
- fsync_sub(&fsg->luns[i]);
-}
-
static int do_synchronize_cache(struct fsg_dev *fsg)
{
- struct lun *curlun = fsg->curlun;
+ struct fsg_lun *curlun = fsg->curlun;
int rc;
/* We ignore the requested LBA and write out all file's
* dirty data buffers. */
- rc = fsync_sub(curlun);
+ rc = fsg_lun_fsync_sub(curlun);
if (rc)
curlun->sense_data = SS_WRITE_ERROR;
return 0;
/*-------------------------------------------------------------------------*/
-static void invalidate_sub(struct lun *curlun)
+static void invalidate_sub(struct fsg_lun *curlun)
{
struct file *filp = curlun->filp;
struct inode *inode = filp->f_path.dentry->d_inode;
static int do_verify(struct fsg_dev *fsg)
{
- struct lun *curlun = fsg->curlun;
+ struct fsg_lun *curlun = fsg->curlun;
u32 lba;
u32 verification_length;
struct fsg_buffhd *bh = fsg->next_buffhd_to_fill;
file_offset = ((loff_t) lba) << 9;
/* Write out all the dirty buffers before invalidating them */
- fsync_sub(curlun);
+ fsg_lun_fsync_sub(curlun);
if (signal_pending(current))
return -EINTR;
static int do_request_sense(struct fsg_dev *fsg, struct fsg_buffhd *bh)
{
- struct lun *curlun = fsg->curlun;
+ struct fsg_lun *curlun = fsg->curlun;
u8 *buf = (u8 *) bh->buf;
u32 sd, sdinfo;
int valid;
static int do_read_capacity(struct fsg_dev *fsg, struct fsg_buffhd *bh)
{
- struct lun *curlun = fsg->curlun;
+ struct fsg_lun *curlun = fsg->curlun;
u32 lba = get_unaligned_be32(&fsg->cmnd[2]);
int pmi = fsg->cmnd[8];
u8 *buf = (u8 *) bh->buf;
}
-static void store_cdrom_address(u8 *dest, int msf, u32 addr)
-{
- if (msf) {
- /* Convert to Minutes-Seconds-Frames */
- addr >>= 2; /* Convert to 2048-byte frames */
- addr += 2*75; /* Lead-in occupies 2 seconds */
- dest[3] = addr % 75; /* Frames */
- addr /= 75;
- dest[2] = addr % 60; /* Seconds */
- addr /= 60;
- dest[1] = addr; /* Minutes */
- dest[0] = 0; /* Reserved */
- } else {
- /* Absolute sector */
- put_unaligned_be32(addr, dest);
- }
-}
-
static int do_read_header(struct fsg_dev *fsg, struct fsg_buffhd *bh)
{
- struct lun *curlun = fsg->curlun;
+ struct fsg_lun *curlun = fsg->curlun;
int msf = fsg->cmnd[1] & 0x02;
u32 lba = get_unaligned_be32(&fsg->cmnd[2]);
u8 *buf = (u8 *) bh->buf;
static int do_read_toc(struct fsg_dev *fsg, struct fsg_buffhd *bh)
{
- struct lun *curlun = fsg->curlun;
+ struct fsg_lun *curlun = fsg->curlun;
int msf = fsg->cmnd[1] & 0x02;
int start_track = fsg->cmnd[6];
u8 *buf = (u8 *) bh->buf;
static int do_mode_sense(struct fsg_dev *fsg, struct fsg_buffhd *bh)
{
- struct lun *curlun = fsg->curlun;
+ struct fsg_lun *curlun = fsg->curlun;
int mscmnd = fsg->cmnd[0];
u8 *buf = (u8 *) bh->buf;
u8 *buf0 = buf;
static int do_start_stop(struct fsg_dev *fsg)
{
- struct lun *curlun = fsg->curlun;
+ struct fsg_lun *curlun = fsg->curlun;
int loej, start;
if (!mod_data.removable) {
if (loej) { // Simulate an unload/eject
up_read(&fsg->filesem);
down_write(&fsg->filesem);
- close_backing_file(curlun);
+ fsg_lun_close(curlun);
up_write(&fsg->filesem);
down_read(&fsg->filesem);
}
/* Our emulation doesn't support mounting; the medium is
* available for use as soon as it is loaded. */
- if (!backing_file_is_open(curlun)) {
+ if (!fsg_lun_is_open(curlun)) {
curlun->sense_data = SS_MEDIUM_NOT_PRESENT;
return -EINVAL;
}
static int do_prevent_allow(struct fsg_dev *fsg)
{
- struct lun *curlun = fsg->curlun;
+ struct fsg_lun *curlun = fsg->curlun;
int prevent;
if (!mod_data.removable) {
}
if (curlun->prevent_medium_removal && !prevent)
- fsync_sub(curlun);
+ fsg_lun_fsync_sub(curlun);
curlun->prevent_medium_removal = prevent;
return 0;
}
static int do_read_format_capacities(struct fsg_dev *fsg,
struct fsg_buffhd *bh)
{
- struct lun *curlun = fsg->curlun;
+ struct fsg_lun *curlun = fsg->curlun;
u8 *buf = (u8 *) bh->buf;
buf[0] = buf[1] = buf[2] = 0;
static int do_mode_select(struct fsg_dev *fsg, struct fsg_buffhd *bh)
{
- struct lun *curlun = fsg->curlun;
+ struct fsg_lun *curlun = fsg->curlun;
/* We don't support MODE SELECT */
curlun->sense_data = SS_INVALID_COMMAND;
static int send_status(struct fsg_dev *fsg)
{
- struct lun *curlun = fsg->curlun;
+ struct fsg_lun *curlun = fsg->curlun;
struct fsg_buffhd *bh;
int rc;
u8 status = USB_STATUS_PASS;
int lun = fsg->cmnd[1] >> 5;
static const char dirletter[4] = {'u', 'o', 'i', 'n'};
char hdlen[20];
- struct lun *curlun;
+ struct fsg_lun *curlun;
/* Adjust the expected cmnd_size for protocol encapsulation padding.
* Transparent SCSI doesn't pad. */
/* If the medium isn't mounted and the command needs to access
* it, return an error. */
- if (curlun && !backing_file_is_open(curlun) && needs_medium) {
+ if (curlun && !fsg_lun_is_open(curlun) && needs_medium) {
curlun->sense_data = SS_MEDIUM_NOT_PRESENT;
return -EINVAL;
}
static int received_cbw(struct fsg_dev *fsg, struct fsg_buffhd *bh)
{
- struct usb_request *req = bh->outreq;
- struct bulk_cb_wrap *cbw = req->buf;
+ struct usb_request *req = bh->outreq;
+ struct fsg_bulk_cb_wrap *cbw = req->buf;
/* Was this a real packet? Should it be ignored? */
if (req->status || test_bit(IGNORE_BULK_OUT, &fsg->atomic_bitflags))
}
/* Is the CBW meaningful? */
- if (cbw->Lun >= MAX_LUNS || cbw->Flags & ~USB_BULK_IN_FLAG ||
+ if (cbw->Lun >= FSG_MAX_LUNS || cbw->Flags & ~USB_BULK_IN_FLAG ||
cbw->Length <= 0 || cbw->Length > MAX_COMMAND_SIZE) {
DBG(fsg, "non-meaningful CBW: lun = %u, flags = 0x%x, "
"cmdlen %u\n",
reset:
/* Deallocate the requests */
- for (i = 0; i < NUM_BUFFERS; ++i) {
+ for (i = 0; i < FSG_NUM_BUFFERS; ++i) {
struct fsg_buffhd *bh = &fsg->buffhds[i];
if (bh->inreq) {
DBG(fsg, "set interface %d\n", altsetting);
/* Enable the endpoints */
- d = ep_desc(fsg->gadget, &fs_bulk_in_desc, &hs_bulk_in_desc);
+ d = fsg_ep_desc(fsg->gadget,
+ &fsg_fs_bulk_in_desc, &fsg_hs_bulk_in_desc);
if ((rc = enable_endpoint(fsg, fsg->bulk_in, d)) != 0)
goto reset;
fsg->bulk_in_enabled = 1;
- d = ep_desc(fsg->gadget, &fs_bulk_out_desc, &hs_bulk_out_desc);
+ d = fsg_ep_desc(fsg->gadget,
+ &fsg_fs_bulk_out_desc, &fsg_hs_bulk_out_desc);
if ((rc = enable_endpoint(fsg, fsg->bulk_out, d)) != 0)
goto reset;
fsg->bulk_out_enabled = 1;
clear_bit(IGNORE_BULK_OUT, &fsg->atomic_bitflags);
if (transport_is_cbi()) {
- d = ep_desc(fsg->gadget, &fs_intr_in_desc, &hs_intr_in_desc);
+ d = fsg_ep_desc(fsg->gadget,
+ &fsg_fs_intr_in_desc, &fsg_hs_intr_in_desc);
if ((rc = enable_endpoint(fsg, fsg->intr_in, d)) != 0)
goto reset;
fsg->intr_in_enabled = 1;
}
/* Allocate the requests */
- for (i = 0; i < NUM_BUFFERS; ++i) {
+ for (i = 0; i < FSG_NUM_BUFFERS; ++i) {
struct fsg_buffhd *bh = &fsg->buffhds[i];
if ((rc = alloc_request(fsg, fsg->bulk_in, &bh->inreq)) != 0)
struct fsg_buffhd *bh;
enum fsg_state old_state;
u8 new_config;
- struct lun *curlun;
+ struct fsg_lun *curlun;
unsigned int exception_req_tag;
int rc;
/* Cancel all the pending transfers */
if (fsg->intreq_busy)
usb_ep_dequeue(fsg->intr_in, fsg->intreq);
- for (i = 0; i < NUM_BUFFERS; ++i) {
+ for (i = 0; i < FSG_NUM_BUFFERS; ++i) {
bh = &fsg->buffhds[i];
if (bh->inreq_busy)
usb_ep_dequeue(fsg->bulk_in, bh->inreq);
/* Wait until everything is idle */
for (;;) {
num_active = fsg->intreq_busy;
- for (i = 0; i < NUM_BUFFERS; ++i) {
+ for (i = 0; i < FSG_NUM_BUFFERS; ++i) {
bh = &fsg->buffhds[i];
num_active += bh->inreq_busy + bh->outreq_busy;
}
* state, and the exception. Then invoke the handler. */
spin_lock_irq(&fsg->lock);
- for (i = 0; i < NUM_BUFFERS; ++i) {
+ for (i = 0; i < FSG_NUM_BUFFERS; ++i) {
bh = &fsg->buffhds[i];
bh->state = BUF_STATE_EMPTY;
}
break;
case FSG_STATE_DISCONNECT:
- fsync_all(fsg);
+ for (i = 0; i < fsg->nluns; ++i)
+ fsg_lun_fsync_sub(fsg->luns + i);
do_set_config(fsg, 0); // Unconfigured state
break;
/*-------------------------------------------------------------------------*/
-/* If the next two routines are called while the gadget is registered,
- * the caller must own fsg->filesem for writing. */
-
-static int open_backing_file(struct lun *curlun, const char *filename)
-{
- int ro;
- struct file *filp = NULL;
- int rc = -EINVAL;
- struct inode *inode = NULL;
- loff_t size;
- loff_t num_sectors;
- loff_t min_sectors;
-
- /* R/W if we can, R/O if we must */
- ro = curlun->ro;
- if (!ro) {
- filp = filp_open(filename, O_RDWR | O_LARGEFILE, 0);
- if (-EROFS == PTR_ERR(filp))
- ro = 1;
- }
- if (ro)
- filp = filp_open(filename, O_RDONLY | O_LARGEFILE, 0);
- if (IS_ERR(filp)) {
- LINFO(curlun, "unable to open backing file: %s\n", filename);
- return PTR_ERR(filp);
- }
-
- if (!(filp->f_mode & FMODE_WRITE))
- ro = 1;
-
- if (filp->f_path.dentry)
- inode = filp->f_path.dentry->d_inode;
- if (inode && S_ISBLK(inode->i_mode)) {
- if (bdev_read_only(inode->i_bdev))
- ro = 1;
- } else if (!inode || !S_ISREG(inode->i_mode)) {
- LINFO(curlun, "invalid file type: %s\n", filename);
- goto out;
- }
-
- /* If we can't read the file, it's no good.
- * If we can't write the file, use it read-only. */
- if (!filp->f_op || !(filp->f_op->read || filp->f_op->aio_read)) {
- LINFO(curlun, "file not readable: %s\n", filename);
- goto out;
- }
- if (!(filp->f_op->write || filp->f_op->aio_write))
- ro = 1;
-
- size = i_size_read(inode->i_mapping->host);
- if (size < 0) {
- LINFO(curlun, "unable to find file size: %s\n", filename);
- rc = (int) size;
- goto out;
- }
- num_sectors = size >> 9; // File size in 512-byte blocks
- min_sectors = 1;
- if (mod_data.cdrom) {
- num_sectors &= ~3; // Reduce to a multiple of 2048
- min_sectors = 300*4; // Smallest track is 300 frames
- if (num_sectors >= 256*60*75*4) {
- num_sectors = (256*60*75 - 1) * 4;
- LINFO(curlun, "file too big: %s\n", filename);
- LINFO(curlun, "using only first %d blocks\n",
- (int) num_sectors);
- }
- }
- if (num_sectors < min_sectors) {
- LINFO(curlun, "file too small: %s\n", filename);
- rc = -ETOOSMALL;
- goto out;
- }
-
- get_file(filp);
- curlun->ro = ro;
- curlun->filp = filp;
- curlun->file_length = size;
- curlun->num_sectors = num_sectors;
- LDBG(curlun, "open backing file: %s\n", filename);
- rc = 0;
-
-out:
- filp_close(filp, current->files);
- return rc;
-}
-
-
-static void close_backing_file(struct lun *curlun)
-{
- if (curlun->filp) {
- LDBG(curlun, "close backing file\n");
- fput(curlun->filp);
- curlun->filp = NULL;
- }
-}
-
-
-static ssize_t show_ro(struct device *dev, struct device_attribute *attr, char *buf)
-{
- struct lun *curlun = dev_to_lun(dev);
-
- return sprintf(buf, "%d\n", curlun->ro);
-}
-
-static ssize_t show_file(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- struct lun *curlun = dev_to_lun(dev);
- struct fsg_dev *fsg = dev_get_drvdata(dev);
- char *p;
- ssize_t rc;
-
- down_read(&fsg->filesem);
- if (backing_file_is_open(curlun)) { // Get the complete pathname
- p = d_path(&curlun->filp->f_path, buf, PAGE_SIZE - 1);
- if (IS_ERR(p))
- rc = PTR_ERR(p);
- else {
- rc = strlen(p);
- memmove(buf, p, rc);
- buf[rc] = '\n'; // Add a newline
- buf[++rc] = 0;
- }
- } else { // No file, return 0 bytes
- *buf = 0;
- rc = 0;
- }
- up_read(&fsg->filesem);
- return rc;
-}
-
-
-static ssize_t store_ro(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t count)
-{
- ssize_t rc = count;
- struct lun *curlun = dev_to_lun(dev);
- struct fsg_dev *fsg = dev_get_drvdata(dev);
- int i;
-
- if (sscanf(buf, "%d", &i) != 1)
- return -EINVAL;
-
- /* Allow the write-enable status to change only while the backing file
- * is closed. */
- down_read(&fsg->filesem);
- if (backing_file_is_open(curlun)) {
- LDBG(curlun, "read-only status change prevented\n");
- rc = -EBUSY;
- } else {
- curlun->ro = !!i;
- LDBG(curlun, "read-only status set to %d\n", curlun->ro);
- }
- up_read(&fsg->filesem);
- return rc;
-}
-
-static ssize_t store_file(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct lun *curlun = dev_to_lun(dev);
- struct fsg_dev *fsg = dev_get_drvdata(dev);
- int rc = 0;
-
- if (curlun->prevent_medium_removal && backing_file_is_open(curlun)) {
- LDBG(curlun, "eject attempt prevented\n");
- return -EBUSY; // "Door is locked"
- }
-
- /* Remove a trailing newline */
- if (count > 0 && buf[count-1] == '\n')
- ((char *) buf)[count-1] = 0; // Ugh!
-
- /* Eject current medium */
- down_write(&fsg->filesem);
- if (backing_file_is_open(curlun)) {
- close_backing_file(curlun);
- curlun->unit_attention_data = SS_MEDIUM_NOT_PRESENT;
- }
-
- /* Load new medium */
- if (count > 0 && buf[0]) {
- rc = open_backing_file(curlun, buf);
- if (rc == 0)
- curlun->unit_attention_data =
- SS_NOT_READY_TO_READY_TRANSITION;
- }
- up_write(&fsg->filesem);
- return (rc < 0 ? rc : count);
-}
-
/* The write permissions and store_xxx pointers are set in fsg_bind() */
-static DEVICE_ATTR(ro, 0444, show_ro, NULL);
-static DEVICE_ATTR(file, 0444, show_file, NULL);
+static DEVICE_ATTR(ro, 0444, fsg_show_ro, NULL);
+static DEVICE_ATTR(file, 0444, fsg_show_file, NULL);
/*-------------------------------------------------------------------------*/
static void lun_release(struct device *dev)
{
- struct fsg_dev *fsg = dev_get_drvdata(dev);
+ struct rw_semaphore *filesem = dev_get_drvdata(dev);
+ struct fsg_dev *fsg =
+ container_of(filesem, struct fsg_dev, filesem);
kref_put(&fsg->ref, fsg_release);
}
{
struct fsg_dev *fsg = get_gadget_data(gadget);
int i;
- struct lun *curlun;
+ struct fsg_lun *curlun;
struct usb_request *req = fsg->ep0req;
DBG(fsg, "unbind\n");
if (curlun->registered) {
device_remove_file(&curlun->dev, &dev_attr_ro);
device_remove_file(&curlun->dev, &dev_attr_file);
- close_backing_file(curlun);
+ fsg_lun_close(curlun);
device_unregister(&curlun->dev);
curlun->registered = 0;
}
}
/* Free the data buffers */
- for (i = 0; i < NUM_BUFFERS; ++i)
+ for (i = 0; i < FSG_NUM_BUFFERS; ++i)
kfree(fsg->buffhds[i].buf);
/* Free the request and buffer for endpoint 0 */
struct fsg_dev *fsg = the_fsg;
int rc;
int i;
- struct lun *curlun;
+ struct fsg_lun *curlun;
struct usb_ep *ep;
struct usb_request *req;
char *pathbuf, *p;
if (mod_data.removable) { // Enable the store_xxx attributes
dev_attr_file.attr.mode = 0644;
- dev_attr_file.store = store_file;
+ dev_attr_file.store = fsg_store_file;
if (!mod_data.cdrom) {
dev_attr_ro.attr.mode = 0644;
- dev_attr_ro.store = store_ro;
+ dev_attr_ro.store = fsg_store_ro;
}
}
i = mod_data.nluns;
if (i == 0)
i = max(mod_data.num_filenames, 1u);
- if (i > MAX_LUNS) {
+ if (i > FSG_MAX_LUNS) {
ERROR(fsg, "invalid number of LUNs: %d\n", i);
rc = -EINVAL;
goto out;
/* Create the LUNs, open their backing files, and register the
* LUN devices in sysfs. */
- fsg->luns = kzalloc(i * sizeof(struct lun), GFP_KERNEL);
+ fsg->luns = kzalloc(i * sizeof(struct fsg_lun), GFP_KERNEL);
if (!fsg->luns) {
rc = -ENOMEM;
goto out;
for (i = 0; i < fsg->nluns; ++i) {
curlun = &fsg->luns[i];
- curlun->ro = mod_data.ro[i];
- if (mod_data.cdrom)
- curlun->ro = 1;
+ curlun->cdrom = !!mod_data.cdrom;
+ curlun->ro = mod_data.cdrom || mod_data.ro[i];
+ curlun->initially_ro = curlun->ro;
+ curlun->removable = mod_data.removable;
curlun->dev.release = lun_release;
curlun->dev.parent = &gadget->dev;
curlun->dev.driver = &fsg_driver.driver;
- dev_set_drvdata(&curlun->dev, fsg);
+ dev_set_drvdata(&curlun->dev, &fsg->filesem);
dev_set_name(&curlun->dev,"%s-lun%d",
dev_name(&gadget->dev), i);
kref_get(&fsg->ref);
if (mod_data.file[i] && *mod_data.file[i]) {
- if ((rc = open_backing_file(curlun,
+ if ((rc = fsg_lun_open(curlun,
mod_data.file[i])) != 0)
goto out;
} else if (!mod_data.removable) {
/* Find all the endpoints we will use */
usb_ep_autoconfig_reset(gadget);
- ep = usb_ep_autoconfig(gadget, &fs_bulk_in_desc);
+ ep = usb_ep_autoconfig(gadget, &fsg_fs_bulk_in_desc);
if (!ep)
goto autoconf_fail;
ep->driver_data = fsg; // claim the endpoint
fsg->bulk_in = ep;
- ep = usb_ep_autoconfig(gadget, &fs_bulk_out_desc);
+ ep = usb_ep_autoconfig(gadget, &fsg_fs_bulk_out_desc);
if (!ep)
goto autoconf_fail;
ep->driver_data = fsg; // claim the endpoint
fsg->bulk_out = ep;
if (transport_is_cbi()) {
- ep = usb_ep_autoconfig(gadget, &fs_intr_in_desc);
+ ep = usb_ep_autoconfig(gadget, &fsg_fs_intr_in_desc);
if (!ep)
goto autoconf_fail;
ep->driver_data = fsg; // claim the endpoint
device_desc.bcdDevice = cpu_to_le16(mod_data.release);
i = (transport_is_cbi() ? 3 : 2); // Number of endpoints
- intf_desc.bNumEndpoints = i;
- intf_desc.bInterfaceSubClass = mod_data.protocol_type;
- intf_desc.bInterfaceProtocol = mod_data.transport_type;
- fs_function[i + FS_FUNCTION_PRE_EP_ENTRIES] = NULL;
+ fsg_intf_desc.bNumEndpoints = i;
+ fsg_intf_desc.bInterfaceSubClass = mod_data.protocol_type;
+ fsg_intf_desc.bInterfaceProtocol = mod_data.transport_type;
+ fsg_fs_function[i + FSG_FS_FUNCTION_PRE_EP_ENTRIES] = NULL;
if (gadget_is_dualspeed(gadget)) {
- hs_function[i + HS_FUNCTION_PRE_EP_ENTRIES] = NULL;
+ fsg_hs_function[i + FSG_HS_FUNCTION_PRE_EP_ENTRIES] = NULL;
/* Assume ep0 uses the same maxpacket value for both speeds */
dev_qualifier.bMaxPacketSize0 = fsg->ep0->maxpacket;
/* Assume endpoint addresses are the same for both speeds */
- hs_bulk_in_desc.bEndpointAddress =
- fs_bulk_in_desc.bEndpointAddress;
- hs_bulk_out_desc.bEndpointAddress =
- fs_bulk_out_desc.bEndpointAddress;
- hs_intr_in_desc.bEndpointAddress =
- fs_intr_in_desc.bEndpointAddress;
+ fsg_hs_bulk_in_desc.bEndpointAddress =
+ fsg_fs_bulk_in_desc.bEndpointAddress;
+ fsg_hs_bulk_out_desc.bEndpointAddress =
+ fsg_fs_bulk_out_desc.bEndpointAddress;
+ fsg_hs_intr_in_desc.bEndpointAddress =
+ fsg_fs_intr_in_desc.bEndpointAddress;
}
if (gadget_is_otg(gadget))
- otg_desc.bmAttributes |= USB_OTG_HNP;
+ fsg_otg_desc.bmAttributes |= USB_OTG_HNP;
rc = -ENOMEM;
req->complete = ep0_complete;
/* Allocate the data buffers */
- for (i = 0; i < NUM_BUFFERS; ++i) {
+ for (i = 0; i < FSG_NUM_BUFFERS; ++i) {
struct fsg_buffhd *bh = &fsg->buffhds[i];
/* Allocate for the bulk-in endpoint. We assume that
goto out;
bh->next = bh + 1;
}
- fsg->buffhds[NUM_BUFFERS - 1].next = &fsg->buffhds[0];
+ fsg->buffhds[FSG_NUM_BUFFERS - 1].next = &fsg->buffhds[0];
/* This should reflect the actual gadget power source */
usb_gadget_set_selfpowered(gadget);
- snprintf(manufacturer, sizeof manufacturer, "%s %s with %s",
+ snprintf(fsg_string_manufacturer, sizeof fsg_string_manufacturer,
+ "%s %s with %s",
init_utsname()->sysname, init_utsname()->release,
gadget->name);
/* On a real device, serial[] would be loaded from permanent
* storage. We just encode it from the driver version string. */
- for (i = 0; i < sizeof(serial) - 2; i += 2) {
+ for (i = 0; i < sizeof fsg_string_serial - 2; i += 2) {
unsigned char c = DRIVER_VERSION[i / 2];
if (!c)
break;
- sprintf(&serial[i], "%02X", c);
+ sprintf(&fsg_string_serial[i], "%02X", c);
}
fsg->thread_task = kthread_create(fsg_main_thread, fsg,
pathbuf = kmalloc(PATH_MAX, GFP_KERNEL);
for (i = 0; i < fsg->nluns; ++i) {
curlun = &fsg->luns[i];
- if (backing_file_is_open(curlun)) {
+ if (fsg_lun_is_open(curlun)) {
p = NULL;
if (pathbuf) {
p = d_path(&curlun->filp->f_path,
#else
.speed = USB_SPEED_FULL,
#endif
- .function = (char *) longname,
+ .function = (char *) fsg_string_product,
.bind = fsg_bind,
.unbind = fsg_unbind,
.disconnect = fsg_disconnect,
.resume = fsg_resume,
.driver = {
- .name = (char *) shortname,
+ .name = DRIVER_NAME,
.owner = THIS_MODULE,
// .release = ...
// .suspend = ...
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff