X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=include%2Flinux%2Fdevice.h;h=1a060265aceae6f31b2875d86f660dc9baaee1ab;hb=29f2a4dac856e9433a502b05b40e8e90385d8e27;hp=1e5f30da98bc528b9ab9aaf629a673cb50e6f8ae;hpb=3e95637a48820ff8bedb33e6439def96ccff1de5;p=safe%2Fjmp%2Flinux-2.6 diff --git a/include/linux/device.h b/include/linux/device.h index 1e5f30d..1a06026 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -2,6 +2,7 @@ * device.h - generic, centralized driver model * * Copyright (c) 2001-2003 Patrick Mochel + * Copyright (c) 2004-2007 Greg Kroah-Hartman * * This file is released under the GPLv2 * @@ -15,174 +16,229 @@ #include #include #include +#include #include #include #include -#include +#include #include +#include #define DEVICE_NAME_SIZE 50 -#define DEVICE_NAME_HALF __stringify(20) /* Less than half to accommodate slop */ +/* DEVICE_NAME_HALF is really less than half to accommodate slop */ +#define DEVICE_NAME_HALF __stringify(20) #define DEVICE_ID_SIZE 32 #define BUS_ID_SIZE KOBJ_NAME_LEN struct device; struct device_driver; +struct driver_private; struct class; struct class_device; +struct bus_type; +struct bus_type_private; + +struct bus_attribute { + struct attribute attr; + ssize_t (*show)(struct bus_type *bus, char *buf); + ssize_t (*store)(struct bus_type *bus, const char *buf, size_t count); +}; + +#define BUS_ATTR(_name, _mode, _show, _store) \ +struct bus_attribute bus_attr_##_name = __ATTR(_name, _mode, _show, _store) + +extern int __must_check bus_create_file(struct bus_type *, + struct bus_attribute *); +extern void bus_remove_file(struct bus_type *, struct bus_attribute *); struct bus_type { - const char * name; - - struct subsystem subsys; - struct kset drivers; - struct kset devices; - struct klist klist_devices; - struct klist klist_drivers; - - struct bus_attribute * bus_attrs; - struct device_attribute * dev_attrs; - struct driver_attribute * drv_attrs; - - int (*match)(struct device * dev, struct device_driver * drv); - int (*uevent)(struct device *dev, char **envp, - int num_envp, char *buffer, int buffer_size); - int (*probe)(struct device * dev); - int (*remove)(struct device * dev); - void (*shutdown)(struct device * dev); - int (*suspend)(struct device * dev, pm_message_t state); - int (*resume)(struct device * dev); + const char *name; + struct bus_attribute *bus_attrs; + struct device_attribute *dev_attrs; + struct driver_attribute *drv_attrs; + + int (*match)(struct device *dev, struct device_driver *drv); + int (*uevent)(struct device *dev, struct kobj_uevent_env *env); + int (*probe)(struct device *dev); + int (*remove)(struct device *dev); + void (*shutdown)(struct device *dev); + + int (*suspend)(struct device *dev, pm_message_t state); + int (*suspend_late)(struct device *dev, pm_message_t state); + int (*resume_early)(struct device *dev); + int (*resume)(struct device *dev); + + struct bus_type_private *p; }; -extern int bus_register(struct bus_type * bus); -extern void bus_unregister(struct bus_type * bus); +extern int __must_check bus_register(struct bus_type *bus); +extern void bus_unregister(struct bus_type *bus); -extern void bus_rescan_devices(struct bus_type * bus); +extern int __must_check bus_rescan_devices(struct bus_type *bus); /* iterator helpers for buses */ -int bus_for_each_dev(struct bus_type * bus, struct device * start, void * data, - int (*fn)(struct device *, void *)); -struct device * bus_find_device(struct bus_type *bus, struct device *start, - void *data, int (*match)(struct device *, void *)); +int bus_for_each_dev(struct bus_type *bus, struct device *start, void *data, + int (*fn)(struct device *dev, void *data)); +struct device *bus_find_device(struct bus_type *bus, struct device *start, + void *data, + int (*match)(struct device *dev, void *data)); +struct device *bus_find_device_by_name(struct bus_type *bus, + struct device *start, + const char *name); -int bus_for_each_drv(struct bus_type * bus, struct device_driver * start, - void * data, int (*fn)(struct device_driver *, void *)); +int __must_check bus_for_each_drv(struct bus_type *bus, + struct device_driver *start, void *data, + int (*fn)(struct device_driver *, void *)); +/* + * Bus notifiers: Get notified of addition/removal of devices + * and binding/unbinding of drivers to devices. + * In the long run, it should be a replacement for the platform + * notify hooks. + */ +struct notifier_block; -/* driverfs interface for exporting bus attributes */ - -struct bus_attribute { - struct attribute attr; - ssize_t (*show)(struct bus_type *, char * buf); - ssize_t (*store)(struct bus_type *, const char * buf, size_t count); -}; +extern int bus_register_notifier(struct bus_type *bus, + struct notifier_block *nb); +extern int bus_unregister_notifier(struct bus_type *bus, + struct notifier_block *nb); -#define BUS_ATTR(_name,_mode,_show,_store) \ -struct bus_attribute bus_attr_##_name = __ATTR(_name,_mode,_show,_store) +/* All 4 notifers below get called with the target struct device * + * as an argument. Note that those functions are likely to be called + * with the device semaphore held in the core, so be careful. + */ +#define BUS_NOTIFY_ADD_DEVICE 0x00000001 /* device added */ +#define BUS_NOTIFY_DEL_DEVICE 0x00000002 /* device removed */ +#define BUS_NOTIFY_BOUND_DRIVER 0x00000003 /* driver bound to device */ +#define BUS_NOTIFY_UNBIND_DRIVER 0x00000004 /* driver about to be + unbound */ -extern int bus_create_file(struct bus_type *, struct bus_attribute *); -extern void bus_remove_file(struct bus_type *, struct bus_attribute *); +extern struct kset *bus_get_kset(struct bus_type *bus); +extern struct klist *bus_get_device_klist(struct bus_type *bus); struct device_driver { - const char * name; - struct bus_type * bus; + const char *name; + struct bus_type *bus; - struct completion unloaded; - struct kobject kobj; - struct klist klist_devices; - struct klist_node knode_bus; + struct module *owner; + const char *mod_name; /* used for built-in modules */ - struct module * owner; + int (*probe) (struct device *dev); + int (*remove) (struct device *dev); + void (*shutdown) (struct device *dev); + int (*suspend) (struct device *dev, pm_message_t state); + int (*resume) (struct device *dev); + struct attribute_group **groups; - int (*probe) (struct device * dev); - int (*remove) (struct device * dev); - void (*shutdown) (struct device * dev); - int (*suspend) (struct device * dev, pm_message_t state); - int (*resume) (struct device * dev); + struct driver_private *p; }; -extern int driver_register(struct device_driver * drv); -extern void driver_unregister(struct device_driver * drv); +extern int __must_check driver_register(struct device_driver *drv); +extern void driver_unregister(struct device_driver *drv); -extern struct device_driver * get_driver(struct device_driver * drv); -extern void put_driver(struct device_driver * drv); -extern struct device_driver *driver_find(const char *name, struct bus_type *bus); +extern struct device_driver *get_driver(struct device_driver *drv); +extern void put_driver(struct device_driver *drv); +extern struct device_driver *driver_find(const char *name, + struct bus_type *bus); +extern int driver_probe_done(void); - -/* driverfs interface for exporting driver attributes */ +/* sysfs interface for exporting driver attributes */ struct driver_attribute { - struct attribute attr; - ssize_t (*show)(struct device_driver *, char * buf); - ssize_t (*store)(struct device_driver *, const char * buf, size_t count); + struct attribute attr; + ssize_t (*show)(struct device_driver *driver, char *buf); + ssize_t (*store)(struct device_driver *driver, const char *buf, + size_t count); }; -#define DRIVER_ATTR(_name,_mode,_show,_store) \ -struct driver_attribute driver_attr_##_name = __ATTR(_name,_mode,_show,_store) +#define DRIVER_ATTR(_name, _mode, _show, _store) \ +struct driver_attribute driver_attr_##_name = \ + __ATTR(_name, _mode, _show, _store) -extern int driver_create_file(struct device_driver *, struct driver_attribute *); -extern void driver_remove_file(struct device_driver *, struct driver_attribute *); +extern int __must_check driver_create_file(struct device_driver *driver, + struct driver_attribute *attr); +extern void driver_remove_file(struct device_driver *driver, + struct driver_attribute *attr); -extern int driver_for_each_device(struct device_driver * drv, struct device * start, - void * data, int (*fn)(struct device *, void *)); -struct device * driver_find_device(struct device_driver *drv, - struct device *start, void *data, - int (*match)(struct device *, void *)); +extern int __must_check driver_add_kobj(struct device_driver *drv, + struct kobject *kobj, + const char *fmt, ...); +extern int __must_check driver_for_each_device(struct device_driver *drv, + struct device *start, + void *data, + int (*fn)(struct device *dev, + void *)); +struct device *driver_find_device(struct device_driver *drv, + struct device *start, void *data, + int (*match)(struct device *dev, void *data)); /* * device classes */ struct class { - const char * name; - struct module * owner; + const char *name; + struct module *owner; - struct subsystem subsys; + struct kset subsys; struct list_head children; struct list_head devices; struct list_head interfaces; - struct semaphore sem; /* locks both the children and interfaces lists */ + struct kset class_dirs; + struct semaphore sem; /* locks children, devices, interfaces */ + struct class_attribute *class_attrs; + struct class_device_attribute *class_dev_attrs; + struct device_attribute *dev_attrs; - struct class_attribute * class_attrs; - struct class_device_attribute * class_dev_attrs; + int (*uevent)(struct class_device *dev, struct kobj_uevent_env *env); + int (*dev_uevent)(struct device *dev, struct kobj_uevent_env *env); - int (*uevent)(struct class_device *dev, char **envp, - int num_envp, char *buffer, int buffer_size); + void (*release)(struct class_device *dev); + void (*class_release)(struct class *class); + void (*dev_release)(struct device *dev); - void (*release)(struct class_device *dev); - void (*class_release)(struct class *class); + int (*suspend)(struct device *dev, pm_message_t state); + int (*resume)(struct device *dev); }; -extern int class_register(struct class *); -extern void class_unregister(struct class *); +extern int __must_check class_register(struct class *class); +extern void class_unregister(struct class *class); +extern int class_for_each_device(struct class *class, void *data, + int (*fn)(struct device *dev, void *data)); +extern struct device *class_find_device(struct class *class, void *data, + int (*match)(struct device *, void *)); +extern struct class_device *class_find_child(struct class *class, void *data, + int (*match)(struct class_device *, void *)); struct class_attribute { - struct attribute attr; - ssize_t (*show)(struct class *, char * buf); - ssize_t (*store)(struct class *, const char * buf, size_t count); + struct attribute attr; + ssize_t (*show)(struct class *class, char *buf); + ssize_t (*store)(struct class *class, const char *buf, size_t count); }; -#define CLASS_ATTR(_name,_mode,_show,_store) \ -struct class_attribute class_attr_##_name = __ATTR(_name,_mode,_show,_store) +#define CLASS_ATTR(_name, _mode, _show, _store) \ +struct class_attribute class_attr_##_name = __ATTR(_name, _mode, _show, _store) -extern int class_create_file(struct class *, const struct class_attribute *); -extern void class_remove_file(struct class *, const struct class_attribute *); +extern int __must_check class_create_file(struct class *class, + const struct class_attribute *attr); +extern void class_remove_file(struct class *class, + const struct class_attribute *attr); struct class_device_attribute { - struct attribute attr; - ssize_t (*show)(struct class_device *, char * buf); - ssize_t (*store)(struct class_device *, const char * buf, size_t count); + struct attribute attr; + ssize_t (*show)(struct class_device *, char *buf); + ssize_t (*store)(struct class_device *, const char *buf, size_t count); }; -#define CLASS_DEVICE_ATTR(_name,_mode,_show,_store) \ +#define CLASS_DEVICE_ATTR(_name, _mode, _show, _store) \ struct class_device_attribute class_device_attr_##_name = \ - __ATTR(_name,_mode,_show,_store) + __ATTR(_name, _mode, _show, _store) -extern int class_device_create_file(struct class_device *, +extern int __must_check class_device_create_file(struct class_device *, const struct class_device_attribute *); /** @@ -191,7 +247,6 @@ extern int class_device_create_file(struct class_device *, * @devt: for internal use by the driver core only. * @node: for internal use by the driver core only. * @kobj: for internal use by the driver core only. - * @devt_attr: for internal use by the driver core only. * @groups: optional additional groups to be created * @dev: if set, a symlink to the struct device is created in the sysfs * directory for this struct class device. @@ -214,48 +269,41 @@ struct class_device { struct list_head node; struct kobject kobj; - struct class * class; /* required */ - dev_t devt; /* dev_t, creates the sysfs "dev" */ - struct class_device_attribute *devt_attr; - struct class_device_attribute uevent_attr; - struct device * dev; /* not necessary, but nice to have */ - void * class_data; /* class-specific data */ - struct class_device *parent; /* parent of this child device, if there is one */ - struct attribute_group ** groups; /* optional groups */ - - void (*release)(struct class_device *dev); - int (*uevent)(struct class_device *dev, char **envp, - int num_envp, char *buffer, int buffer_size); - char class_id[BUS_ID_SIZE]; /* unique to this class */ + struct class *class; + dev_t devt; + struct device *dev; + void *class_data; + struct class_device *parent; + struct attribute_group **groups; + + void (*release)(struct class_device *dev); + int (*uevent)(struct class_device *dev, struct kobj_uevent_env *env); + char class_id[BUS_ID_SIZE]; }; -static inline void * -class_get_devdata (struct class_device *dev) +static inline void *class_get_devdata(struct class_device *dev) { return dev->class_data; } -static inline void -class_set_devdata (struct class_device *dev, void *data) +static inline void class_set_devdata(struct class_device *dev, void *data) { dev->class_data = data; } -extern int class_device_register(struct class_device *); +extern int __must_check class_device_register(struct class_device *); extern void class_device_unregister(struct class_device *); extern void class_device_initialize(struct class_device *); -extern int class_device_add(struct class_device *); +extern int __must_check class_device_add(struct class_device *); extern void class_device_del(struct class_device *); -extern int class_device_rename(struct class_device *, char *); - -extern struct class_device * class_device_get(struct class_device *); +extern struct class_device *class_device_get(struct class_device *); extern void class_device_put(struct class_device *); -extern void class_device_remove_file(struct class_device *, +extern void class_device_remove_file(struct class_device *, const struct class_device_attribute *); -extern int class_device_create_bin_file(struct class_device *, +extern int __must_check class_device_create_bin_file(struct class_device *, struct bin_attribute *); extern void class_device_remove_bin_file(struct class_device *, struct bin_attribute *); @@ -266,21 +314,40 @@ struct class_interface { int (*add) (struct class_device *, struct class_interface *); void (*remove) (struct class_device *, struct class_interface *); + int (*add_dev) (struct device *, struct class_interface *); + void (*remove_dev) (struct device *, struct class_interface *); }; -extern int class_interface_register(struct class_interface *); +extern int __must_check class_interface_register(struct class_interface *); extern void class_interface_unregister(struct class_interface *); -extern struct class *class_create(struct module *owner, char *name); +extern struct class *class_create(struct module *owner, const char *name); extern void class_destroy(struct class *cls); extern struct class_device *class_device_create(struct class *cls, struct class_device *parent, dev_t devt, struct device *device, - char *fmt, ...) - __attribute__((format(printf,5,6))); + const char *fmt, ...) + __attribute__((format(printf, 5, 6))); extern void class_device_destroy(struct class *cls, dev_t devt); +/* + * The type of device, "struct device" is embedded in. A class + * or bus can contain devices of different types + * like "partitions" and "disks", "mouse" and "event". + * This identifies the device type and carries type-specific + * information, equivalent to the kobj_type of a kobject. + * If "name" is specified, the uevent will contain it in + * the DEVTYPE variable. + */ +struct device_type { + const char *name; + struct attribute_group **groups; + int (*uevent)(struct device *dev, struct kobj_uevent_env *env); + void (*release)(struct device *dev); + int (*suspend)(struct device *dev, pm_message_t state); + int (*resume)(struct device *dev); +}; /* interface for exporting device attributes */ struct device_attribute { @@ -291,37 +358,94 @@ struct device_attribute { const char *buf, size_t count); }; -#define DEVICE_ATTR(_name,_mode,_show,_store) \ -struct device_attribute dev_attr_##_name = __ATTR(_name,_mode,_show,_store) +#define DEVICE_ATTR(_name, _mode, _show, _store) \ +struct device_attribute dev_attr_##_name = __ATTR(_name, _mode, _show, _store) + +extern int __must_check device_create_file(struct device *device, + struct device_attribute *entry); +extern void device_remove_file(struct device *dev, + struct device_attribute *attr); +extern int __must_check device_create_bin_file(struct device *dev, + struct bin_attribute *attr); +extern void device_remove_bin_file(struct device *dev, + struct bin_attribute *attr); +extern int device_schedule_callback_owner(struct device *dev, + void (*func)(struct device *dev), struct module *owner); + +/* This is a macro to avoid include problems with THIS_MODULE */ +#define device_schedule_callback(dev, func) \ + device_schedule_callback_owner(dev, func, THIS_MODULE) + +/* device resource management */ +typedef void (*dr_release_t)(struct device *dev, void *res); +typedef int (*dr_match_t)(struct device *dev, void *res, void *match_data); + +#ifdef CONFIG_DEBUG_DEVRES +extern void *__devres_alloc(dr_release_t release, size_t size, gfp_t gfp, + const char *name); +#define devres_alloc(release, size, gfp) \ + __devres_alloc(release, size, gfp, #release) +#else +extern void *devres_alloc(dr_release_t release, size_t size, gfp_t gfp); +#endif +extern void devres_free(void *res); +extern void devres_add(struct device *dev, void *res); +extern void *devres_find(struct device *dev, dr_release_t release, + dr_match_t match, void *match_data); +extern void *devres_get(struct device *dev, void *new_res, + dr_match_t match, void *match_data); +extern void *devres_remove(struct device *dev, dr_release_t release, + dr_match_t match, void *match_data); +extern int devres_destroy(struct device *dev, dr_release_t release, + dr_match_t match, void *match_data); + +/* devres group */ +extern void * __must_check devres_open_group(struct device *dev, void *id, + gfp_t gfp); +extern void devres_close_group(struct device *dev, void *id); +extern void devres_remove_group(struct device *dev, void *id); +extern int devres_release_group(struct device *dev, void *id); + +/* managed kzalloc/kfree for device drivers, no kmalloc, always use kzalloc */ +extern void *devm_kzalloc(struct device *dev, size_t size, gfp_t gfp); +extern void devm_kfree(struct device *dev, void *p); + +struct device_dma_parameters { + /* + * a low level driver may set these to teach IOMMU code about + * sg limitations. + */ + unsigned int max_segment_size; + unsigned long segment_boundary_mask; +}; -extern int device_create_file(struct device *device, struct device_attribute * entry); -extern void device_remove_file(struct device * dev, struct device_attribute * attr); struct device { struct klist klist_children; - struct klist_node knode_parent; /* node in sibling list */ + struct klist_node knode_parent; /* node in sibling list */ struct klist_node knode_driver; struct klist_node knode_bus; - struct device * parent; + struct device *parent; struct kobject kobj; char bus_id[BUS_ID_SIZE]; /* position on parent bus */ - struct device_attribute uevent_attr; - struct device_attribute *devt_attr; + struct device_type *type; + unsigned uevent_suppress:1; struct semaphore sem; /* semaphore to synchronize calls to * its driver. */ - struct bus_type * bus; /* type of bus device is on */ + struct bus_type *bus; /* type of bus device is on */ struct device_driver *driver; /* which driver has allocated this device */ void *driver_data; /* data private to the driver */ void *platform_data; /* Platform specific data, device core doesn't touch it */ - void *firmware_data; /* Firmware specific data (e.g. ACPI, - BIOS data),reserved for device core*/ struct dev_pm_info power; +#ifdef CONFIG_NUMA + int numa_node; /* NUMA node this device is close to */ +#endif u64 *dma_mask; /* dma mask (if dma'able device) */ u64 coherent_dma_mask;/* Like dma_mask, but for alloc_coherent mappings as @@ -329,63 +453,97 @@ struct device { 64 bit addresses for consistent allocations such descriptors. */ + struct device_dma_parameters *dma_parms; + struct list_head dma_pools; /* dma pools (if dma'ble) */ struct dma_coherent_mem *dma_mem; /* internal for coherent mem override */ + /* arch specific additions */ + struct dev_archdata archdata; + + spinlock_t devres_lock; + struct list_head devres_head; /* class_device migration path */ struct list_head node; - struct class *class; /* optional*/ - dev_t devt; /* dev_t, creates the sysfs "dev" */ + struct class *class; + dev_t devt; /* dev_t, creates the sysfs "dev" */ + struct attribute_group **groups; /* optional groups */ - void (*release)(struct device * dev); + void (*release)(struct device *dev); }; -static inline void * -dev_get_drvdata (struct device *dev) +/* Get the wakeup routines, which depend on struct device */ +#include + +#ifdef CONFIG_NUMA +static inline int dev_to_node(struct device *dev) +{ + return dev->numa_node; +} +static inline void set_dev_node(struct device *dev, int node) +{ + dev->numa_node = node; +} +#else +static inline int dev_to_node(struct device *dev) +{ + return -1; +} +static inline void set_dev_node(struct device *dev, int node) +{ +} +#endif + +static inline void *dev_get_drvdata(struct device *dev) { return dev->driver_data; } -static inline void -dev_set_drvdata (struct device *dev, void *data) +static inline void dev_set_drvdata(struct device *dev, void *data) { dev->driver_data = data; } static inline int device_is_registered(struct device *dev) { - return klist_node_attached(&dev->knode_bus); + return dev->kobj.state_in_sysfs; } +void driver_init(void); + /* * High level routines for use by the bus drivers */ -extern int device_register(struct device * dev); -extern void device_unregister(struct device * dev); -extern void device_initialize(struct device * dev); -extern int device_add(struct device * dev); -extern void device_del(struct device * dev); -extern int device_for_each_child(struct device *, void *, - int (*fn)(struct device *, void *)); +extern int __must_check device_register(struct device *dev); +extern void device_unregister(struct device *dev); +extern void device_initialize(struct device *dev); +extern int __must_check device_add(struct device *dev); +extern void device_del(struct device *dev); +extern int device_for_each_child(struct device *dev, void *data, + int (*fn)(struct device *dev, void *data)); +extern struct device *device_find_child(struct device *dev, void *data, + int (*match)(struct device *dev, void *data)); +extern int device_rename(struct device *dev, char *new_name); +extern int device_move(struct device *dev, struct device *new_parent); /* * Manual binding of a device to driver. See drivers/base/bus.c * for information on use. */ -extern void device_bind_driver(struct device * dev); -extern void device_release_driver(struct device * dev); -extern int device_attach(struct device * dev); -extern void driver_attach(struct device_driver * drv); -extern void device_reprobe(struct device *dev); +extern int __must_check device_bind_driver(struct device *dev); +extern void device_release_driver(struct device *dev); +extern int __must_check device_attach(struct device *dev); +extern int __must_check driver_attach(struct device_driver *drv); +extern int __must_check device_reprobe(struct device *dev); /* * Easy functions for dynamically creating devices on the fly */ extern struct device *device_create(struct class *cls, struct device *parent, - dev_t devt, char *fmt, ...) - __attribute__((format(printf,4,5))); + dev_t devt, const char *fmt, ...) + __attribute__((format(printf, 4, 5))); extern void device_destroy(struct class *cls, dev_t devt); /* @@ -394,47 +552,61 @@ extern void device_destroy(struct class *cls, dev_t devt); * know about. */ /* Notify platform of device discovery */ -extern int (*platform_notify)(struct device * dev); +extern int (*platform_notify)(struct device *dev); -extern int (*platform_notify_remove)(struct device * dev); +extern int (*platform_notify_remove)(struct device *dev); /** * get_device - atomically increment the reference count for the device. * */ -extern struct device * get_device(struct device * dev); -extern void put_device(struct device * dev); +extern struct device *get_device(struct device *dev); +extern void put_device(struct device *dev); /* drivers/base/power/shutdown.c */ extern void device_shutdown(void); - -/* drivers/base/firmware.c */ -extern int firmware_register(struct subsystem *); -extern void firmware_unregister(struct subsystem *); +/* drivers/base/sys.c */ +extern void sysdev_shutdown(void); /* debugging and troubleshooting/diagnostic helpers. */ extern const char *dev_driver_string(struct device *dev); #define dev_printk(level, dev, format, arg...) \ - printk(level "%s %s: " format , dev_driver_string(dev) , (dev)->bus_id , ## arg) + printk(level "%s %s: " format , dev_driver_string(dev) , \ + (dev)->bus_id , ## arg) + +#define dev_emerg(dev, format, arg...) \ + dev_printk(KERN_EMERG , dev , format , ## arg) +#define dev_alert(dev, format, arg...) \ + dev_printk(KERN_ALERT , dev , format , ## arg) +#define dev_crit(dev, format, arg...) \ + dev_printk(KERN_CRIT , dev , format , ## arg) +#define dev_err(dev, format, arg...) \ + dev_printk(KERN_ERR , dev , format , ## arg) +#define dev_warn(dev, format, arg...) \ + dev_printk(KERN_WARNING , dev , format , ## arg) +#define dev_notice(dev, format, arg...) \ + dev_printk(KERN_NOTICE , dev , format , ## arg) +#define dev_info(dev, format, arg...) \ + dev_printk(KERN_INFO , dev , format , ## arg) #ifdef DEBUG #define dev_dbg(dev, format, arg...) \ dev_printk(KERN_DEBUG , dev , format , ## arg) #else -#define dev_dbg(dev, format, arg...) do { (void)(dev); } while (0) +#define dev_dbg(dev, format, arg...) \ + ({ if (0) dev_printk(KERN_DEBUG, dev, format, ##arg); 0; }) #endif -#define dev_err(dev, format, arg...) \ - dev_printk(KERN_ERR , dev , format , ## arg) -#define dev_info(dev, format, arg...) \ - dev_printk(KERN_INFO , dev , format , ## arg) -#define dev_warn(dev, format, arg...) \ - dev_printk(KERN_WARNING , dev , format , ## arg) -#define dev_notice(dev, format, arg...) \ - dev_printk(KERN_NOTICE , dev , format , ## arg) +#ifdef VERBOSE_DEBUG +#define dev_vdbg dev_dbg +#else + +#define dev_vdbg(dev, format, arg...) \ + ({ if (0) dev_printk(KERN_DEBUG, dev, format, ##arg); 0; }) +#endif /* Create alias, so I can be autoloaded. */ #define MODULE_ALIAS_CHARDEV(major,minor) \