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1 | /* |
2 | * device.h - generic, centralized driver model |
3 | * |
4 | * Copyright (c) 2001-2003 Patrick Mochel <mochel@osdl.org> |
5 | * Copyright (c) 2004-2009 Greg Kroah-Hartman <gregkh@suse.de> |
6 | * Copyright (c) 2008-2009 Novell Inc. |
7 | * |
8 | * This file is released under the GPLv2 |
9 | * |
10 | * See Documentation/driver-model/ for more information. |
11 | */ |
12 | |
13 | #ifndef _DEVICE_H_ |
14 | #define _DEVICE_H_ |
15 | |
16 | #include <linux/ioport.h> |
17 | #include <linux/kobject.h> |
18 | #include <linux/klist.h> |
19 | #include <linux/list.h> |
20 | #include <linux/lockdep.h> |
21 | #include <linux/compiler.h> |
22 | #include <linux/types.h> |
23 | #include <linux/module.h> |
24 | #include <linux/pm.h> |
25 | #include <linux/semaphore.h> |
26 | #include <asm/atomic.h> |
27 | #include <asm/device.h> |
28 | |
29 | struct device; |
30 | struct device_private; |
31 | struct device_driver; |
32 | struct driver_private; |
33 | struct class; |
34 | struct class_private; |
35 | struct bus_type; |
36 | struct bus_type_private; |
37 | |
38 | struct bus_attribute { |
39 | struct attribute attr; |
40 | ssize_t (*show)(struct bus_type *bus, char *buf); |
41 | ssize_t (*store)(struct bus_type *bus, const char *buf, size_t count); |
42 | }; |
43 | |
44 | #define BUS_ATTR(_name, _mode, _show, _store) \ |
45 | struct bus_attribute bus_attr_##_name = __ATTR(_name, _mode, _show, _store) |
46 | |
47 | extern int __must_check bus_create_file(struct bus_type *, |
48 | struct bus_attribute *); |
49 | extern void bus_remove_file(struct bus_type *, struct bus_attribute *); |
50 | |
51 | struct bus_type { |
52 | const char *name; |
53 | struct bus_attribute *bus_attrs; |
54 | struct device_attribute *dev_attrs; |
55 | struct driver_attribute *drv_attrs; |
56 | |
57 | int (*match)(struct device *dev, struct device_driver *drv); |
58 | int (*uevent)(struct device *dev, struct kobj_uevent_env *env); |
59 | int (*probe)(struct device *dev); |
60 | int (*remove)(struct device *dev); |
61 | void (*shutdown)(struct device *dev); |
62 | |
63 | int (*suspend)(struct device *dev, pm_message_t state); |
64 | int (*resume)(struct device *dev); |
65 | |
66 | const struct dev_pm_ops *pm; |
67 | |
68 | struct bus_type_private *p; |
69 | }; |
70 | |
71 | extern int __must_check bus_register(struct bus_type *bus); |
72 | extern void bus_unregister(struct bus_type *bus); |
73 | |
74 | extern int __must_check bus_rescan_devices(struct bus_type *bus); |
75 | |
76 | /* iterator helpers for buses */ |
77 | |
78 | int bus_for_each_dev(struct bus_type *bus, struct device *start, void *data, |
79 | int (*fn)(struct device *dev, void *data)); |
80 | struct device *bus_find_device(struct bus_type *bus, struct device *start, |
81 | void *data, |
82 | int (*match)(struct device *dev, void *data)); |
83 | struct device *bus_find_device_by_name(struct bus_type *bus, |
84 | struct device *start, |
85 | const char *name); |
86 | |
87 | int __must_check bus_for_each_drv(struct bus_type *bus, |
88 | struct device_driver *start, void *data, |
89 | int (*fn)(struct device_driver *, void *)); |
90 | |
91 | void bus_sort_breadthfirst(struct bus_type *bus, |
92 | int (*compare)(const struct device *a, |
93 | const struct device *b)); |
94 | /* |
95 | * Bus notifiers: Get notified of addition/removal of devices |
96 | * and binding/unbinding of drivers to devices. |
97 | * In the long run, it should be a replacement for the platform |
98 | * notify hooks. |
99 | */ |
100 | struct notifier_block; |
101 | |
102 | extern int bus_register_notifier(struct bus_type *bus, |
103 | struct notifier_block *nb); |
104 | extern int bus_unregister_notifier(struct bus_type *bus, |
105 | struct notifier_block *nb); |
106 | |
107 | /* All 4 notifers below get called with the target struct device * |
108 | * as an argument. Note that those functions are likely to be called |
109 | * with the device semaphore held in the core, so be careful. |
110 | */ |
111 | #define BUS_NOTIFY_ADD_DEVICE 0x00000001 /* device added */ |
112 | #define BUS_NOTIFY_DEL_DEVICE 0x00000002 /* device removed */ |
113 | #define BUS_NOTIFY_BOUND_DRIVER 0x00000003 /* driver bound to device */ |
114 | #define BUS_NOTIFY_UNBIND_DRIVER 0x00000004 /* driver about to be |
115 | unbound */ |
116 | #define BUS_NOTIFY_UNBOUND_DRIVER 0x00000005 /* driver is unbound |
117 | from the device */ |
118 | |
119 | extern struct kset *bus_get_kset(struct bus_type *bus); |
120 | extern struct klist *bus_get_device_klist(struct bus_type *bus); |
121 | |
122 | struct device_driver { |
123 | const char *name; |
124 | struct bus_type *bus; |
125 | |
126 | struct module *owner; |
127 | const char *mod_name; /* used for built-in modules */ |
128 | |
129 | bool suppress_bind_attrs; /* disables bind/unbind via sysfs */ |
130 | |
131 | int (*probe) (struct device *dev); |
132 | int (*remove) (struct device *dev); |
133 | void (*shutdown) (struct device *dev); |
134 | int (*suspend) (struct device *dev, pm_message_t state); |
135 | int (*resume) (struct device *dev); |
136 | const struct attribute_group **groups; |
137 | |
138 | const struct dev_pm_ops *pm; |
139 | |
140 | struct driver_private *p; |
141 | }; |
142 | |
143 | |
144 | extern int __must_check driver_register(struct device_driver *drv); |
145 | extern void driver_unregister(struct device_driver *drv); |
146 | |
147 | extern struct device_driver *get_driver(struct device_driver *drv); |
148 | extern void put_driver(struct device_driver *drv); |
149 | extern struct device_driver *driver_find(const char *name, |
150 | struct bus_type *bus); |
151 | extern int driver_probe_done(void); |
152 | extern void wait_for_device_probe(void); |
153 | |
154 | |
155 | /* sysfs interface for exporting driver attributes */ |
156 | |
157 | struct driver_attribute { |
158 | struct attribute attr; |
159 | ssize_t (*show)(struct device_driver *driver, char *buf); |
160 | ssize_t (*store)(struct device_driver *driver, const char *buf, |
161 | size_t count); |
162 | }; |
163 | |
164 | #define DRIVER_ATTR(_name, _mode, _show, _store) \ |
165 | struct driver_attribute driver_attr_##_name = \ |
166 | __ATTR(_name, _mode, _show, _store) |
167 | |
168 | extern int __must_check driver_create_file(struct device_driver *driver, |
169 | struct driver_attribute *attr); |
170 | extern void driver_remove_file(struct device_driver *driver, |
171 | struct driver_attribute *attr); |
172 | |
173 | extern int __must_check driver_add_kobj(struct device_driver *drv, |
174 | struct kobject *kobj, |
175 | const char *fmt, ...); |
176 | |
177 | extern int __must_check driver_for_each_device(struct device_driver *drv, |
178 | struct device *start, |
179 | void *data, |
180 | int (*fn)(struct device *dev, |
181 | void *)); |
182 | struct device *driver_find_device(struct device_driver *drv, |
183 | struct device *start, void *data, |
184 | int (*match)(struct device *dev, void *data)); |
185 | |
186 | /* |
187 | * device classes |
188 | */ |
189 | struct class { |
190 | const char *name; |
191 | struct module *owner; |
192 | |
193 | struct class_attribute *class_attrs; |
194 | struct device_attribute *dev_attrs; |
195 | struct kobject *dev_kobj; |
196 | |
197 | int (*dev_uevent)(struct device *dev, struct kobj_uevent_env *env); |
198 | char *(*devnode)(struct device *dev, mode_t *mode); |
199 | |
200 | void (*class_release)(struct class *class); |
201 | void (*dev_release)(struct device *dev); |
202 | |
203 | int (*suspend)(struct device *dev, pm_message_t state); |
204 | int (*resume)(struct device *dev); |
205 | |
206 | const struct dev_pm_ops *pm; |
207 | |
208 | struct class_private *p; |
209 | }; |
210 | |
211 | struct class_dev_iter { |
212 | struct klist_iter ki; |
213 | const struct device_type *type; |
214 | }; |
215 | |
216 | extern struct kobject *sysfs_dev_block_kobj; |
217 | extern struct kobject *sysfs_dev_char_kobj; |
218 | extern int __must_check __class_register(struct class *class, |
219 | struct lock_class_key *key); |
220 | extern void class_unregister(struct class *class); |
221 | |
222 | /* This is a #define to keep the compiler from merging different |
223 | * instances of the __key variable */ |
224 | #define class_register(class) \ |
225 | ({ \ |
226 | static struct lock_class_key __key; \ |
227 | __class_register(class, &__key); \ |
228 | }) |
229 | |
230 | struct class_compat; |
231 | struct class_compat *class_compat_register(const char *name); |
232 | void class_compat_unregister(struct class_compat *cls); |
233 | int class_compat_create_link(struct class_compat *cls, struct device *dev, |
234 | struct device *device_link); |
235 | void class_compat_remove_link(struct class_compat *cls, struct device *dev, |
236 | struct device *device_link); |
237 | |
238 | extern void class_dev_iter_init(struct class_dev_iter *iter, |
239 | struct class *class, |
240 | struct device *start, |
241 | const struct device_type *type); |
242 | extern struct device *class_dev_iter_next(struct class_dev_iter *iter); |
243 | extern void class_dev_iter_exit(struct class_dev_iter *iter); |
244 | |
245 | extern int class_for_each_device(struct class *class, struct device *start, |
246 | void *data, |
247 | int (*fn)(struct device *dev, void *data)); |
248 | extern struct device *class_find_device(struct class *class, |
249 | struct device *start, void *data, |
250 | int (*match)(struct device *, void *)); |
251 | |
252 | struct class_attribute { |
253 | struct attribute attr; |
254 | ssize_t (*show)(struct class *class, char *buf); |
255 | ssize_t (*store)(struct class *class, const char *buf, size_t count); |
256 | }; |
257 | |
258 | #define CLASS_ATTR(_name, _mode, _show, _store) \ |
259 | struct class_attribute class_attr_##_name = __ATTR(_name, _mode, _show, _store) |
260 | |
261 | extern int __must_check class_create_file(struct class *class, |
262 | const struct class_attribute *attr); |
263 | extern void class_remove_file(struct class *class, |
264 | const struct class_attribute *attr); |
265 | |
266 | struct class_interface { |
267 | struct list_head node; |
268 | struct class *class; |
269 | |
270 | int (*add_dev) (struct device *, struct class_interface *); |
271 | void (*remove_dev) (struct device *, struct class_interface *); |
272 | }; |
273 | |
274 | extern int __must_check class_interface_register(struct class_interface *); |
275 | extern void class_interface_unregister(struct class_interface *); |
276 | |
277 | extern struct class * __must_check __class_create(struct module *owner, |
278 | const char *name, |
279 | struct lock_class_key *key); |
280 | extern void class_destroy(struct class *cls); |
281 | |
282 | /* This is a #define to keep the compiler from merging different |
283 | * instances of the __key variable */ |
284 | #define class_create(owner, name) \ |
285 | ({ \ |
286 | static struct lock_class_key __key; \ |
287 | __class_create(owner, name, &__key); \ |
288 | }) |
289 | |
290 | /* |
291 | * The type of device, "struct device" is embedded in. A class |
292 | * or bus can contain devices of different types |
293 | * like "partitions" and "disks", "mouse" and "event". |
294 | * This identifies the device type and carries type-specific |
295 | * information, equivalent to the kobj_type of a kobject. |
296 | * If "name" is specified, the uevent will contain it in |
297 | * the DEVTYPE variable. |
298 | */ |
299 | struct device_type { |
300 | const char *name; |
301 | const struct attribute_group **groups; |
302 | int (*uevent)(struct device *dev, struct kobj_uevent_env *env); |
303 | char *(*devnode)(struct device *dev, mode_t *mode); |
304 | void (*release)(struct device *dev); |
305 | |
306 | const struct dev_pm_ops *pm; |
307 | }; |
308 | |
309 | /* interface for exporting device attributes */ |
310 | struct device_attribute { |
311 | struct attribute attr; |
312 | ssize_t (*show)(struct device *dev, struct device_attribute *attr, |
313 | char *buf); |
314 | ssize_t (*store)(struct device *dev, struct device_attribute *attr, |
315 | const char *buf, size_t count); |
316 | }; |
317 | |
318 | #define DEVICE_ATTR(_name, _mode, _show, _store) \ |
319 | struct device_attribute dev_attr_##_name = __ATTR(_name, _mode, _show, _store) |
320 | |
321 | extern int __must_check device_create_file(struct device *device, |
322 | struct device_attribute *entry); |
323 | extern void device_remove_file(struct device *dev, |
324 | struct device_attribute *attr); |
325 | extern int __must_check device_create_bin_file(struct device *dev, |
326 | struct bin_attribute *attr); |
327 | extern void device_remove_bin_file(struct device *dev, |
328 | struct bin_attribute *attr); |
329 | extern int device_schedule_callback_owner(struct device *dev, |
330 | void (*func)(struct device *dev), struct module *owner); |
331 | |
332 | /* This is a macro to avoid include problems with THIS_MODULE */ |
333 | #define device_schedule_callback(dev, func) \ |
334 | device_schedule_callback_owner(dev, func, THIS_MODULE) |
335 | |
336 | /* device resource management */ |
337 | typedef void (*dr_release_t)(struct device *dev, void *res); |
338 | typedef int (*dr_match_t)(struct device *dev, void *res, void *match_data); |
339 | |
340 | #ifdef CONFIG_DEBUG_DEVRES |
341 | extern void *__devres_alloc(dr_release_t release, size_t size, gfp_t gfp, |
342 | const char *name); |
343 | #define devres_alloc(release, size, gfp) \ |
344 | __devres_alloc(release, size, gfp, #release) |
345 | #else |
346 | extern void *devres_alloc(dr_release_t release, size_t size, gfp_t gfp); |
347 | #endif |
348 | extern void devres_free(void *res); |
349 | extern void devres_add(struct device *dev, void *res); |
350 | extern void *devres_find(struct device *dev, dr_release_t release, |
351 | dr_match_t match, void *match_data); |
352 | extern void *devres_get(struct device *dev, void *new_res, |
353 | dr_match_t match, void *match_data); |
354 | extern void *devres_remove(struct device *dev, dr_release_t release, |
355 | dr_match_t match, void *match_data); |
356 | extern int devres_destroy(struct device *dev, dr_release_t release, |
357 | dr_match_t match, void *match_data); |
358 | |
359 | /* devres group */ |
360 | extern void * __must_check devres_open_group(struct device *dev, void *id, |
361 | gfp_t gfp); |
362 | extern void devres_close_group(struct device *dev, void *id); |
363 | extern void devres_remove_group(struct device *dev, void *id); |
364 | extern int devres_release_group(struct device *dev, void *id); |
365 | |
366 | /* managed kzalloc/kfree for device drivers, no kmalloc, always use kzalloc */ |
367 | extern void *devm_kzalloc(struct device *dev, size_t size, gfp_t gfp); |
368 | extern void devm_kfree(struct device *dev, void *p); |
369 | |
370 | struct device_dma_parameters { |
371 | /* |
372 | * a low level driver may set these to teach IOMMU code about |
373 | * sg limitations. |
374 | */ |
375 | unsigned int max_segment_size; |
376 | unsigned long segment_boundary_mask; |
377 | }; |
378 | |
379 | struct device { |
380 | struct device *parent; |
381 | |
382 | struct device_private *p; |
383 | |
384 | struct kobject kobj; |
385 | const char *init_name; /* initial name of the device */ |
386 | struct device_type *type; |
387 | |
388 | struct semaphore sem; /* semaphore to synchronize calls to |
389 | * its driver. |
390 | */ |
391 | |
392 | struct bus_type *bus; /* type of bus device is on */ |
393 | struct device_driver *driver; /* which driver has allocated this |
394 | device */ |
395 | void *platform_data; /* Platform specific data, device |
396 | core doesn't touch it */ |
397 | struct dev_pm_info power; |
398 | |
399 | #ifdef CONFIG_NUMA |
400 | int numa_node; /* NUMA node this device is close to */ |
401 | #endif |
402 | u64 *dma_mask; /* dma mask (if dma'able device) */ |
403 | u64 coherent_dma_mask;/* Like dma_mask, but for |
404 | alloc_coherent mappings as |
405 | not all hardware supports |
406 | 64 bit addresses for consistent |
407 | allocations such descriptors. */ |
408 | |
409 | struct device_dma_parameters *dma_parms; |
410 | |
411 | struct list_head dma_pools; /* dma pools (if dma'ble) */ |
412 | |
413 | struct dma_coherent_mem *dma_mem; /* internal for coherent mem |
414 | override */ |
415 | /* arch specific additions */ |
416 | struct dev_archdata archdata; |
417 | |
418 | dev_t devt; /* dev_t, creates the sysfs "dev" */ |
419 | |
420 | spinlock_t devres_lock; |
421 | struct list_head devres_head; |
422 | |
423 | struct klist_node knode_class; |
424 | struct class *class; |
425 | const struct attribute_group **groups; /* optional groups */ |
426 | |
427 | void (*release)(struct device *dev); |
428 | }; |
429 | |
430 | /* Get the wakeup routines, which depend on struct device */ |
431 | #include <linux/pm_wakeup.h> |
432 | |
433 | static inline const char *dev_name(const struct device *dev) |
434 | { |
435 | return kobject_name(&dev->kobj); |
436 | } |
437 | |
438 | extern int dev_set_name(struct device *dev, const char *name, ...) |
439 | __attribute__((format(printf, 2, 3))); |
440 | |
441 | #ifdef CONFIG_NUMA |
442 | static inline int dev_to_node(struct device *dev) |
443 | { |
444 | return dev->numa_node; |
445 | } |
446 | static inline void set_dev_node(struct device *dev, int node) |
447 | { |
448 | dev->numa_node = node; |
449 | } |
450 | #else |
451 | static inline int dev_to_node(struct device *dev) |
452 | { |
453 | return -1; |
454 | } |
455 | static inline void set_dev_node(struct device *dev, int node) |
456 | { |
457 | } |
458 | #endif |
459 | |
460 | static inline unsigned int dev_get_uevent_suppress(const struct device *dev) |
461 | { |
462 | return dev->kobj.uevent_suppress; |
463 | } |
464 | |
465 | static inline void dev_set_uevent_suppress(struct device *dev, int val) |
466 | { |
467 | dev->kobj.uevent_suppress = val; |
468 | } |
469 | |
470 | static inline int device_is_registered(struct device *dev) |
471 | { |
472 | return dev->kobj.state_in_sysfs; |
473 | } |
474 | |
475 | void driver_init(void); |
476 | |
477 | /* |
478 | * High level routines for use by the bus drivers |
479 | */ |
480 | extern int __must_check device_register(struct device *dev); |
481 | extern void device_unregister(struct device *dev); |
482 | extern void device_initialize(struct device *dev); |
483 | extern int __must_check device_add(struct device *dev); |
484 | extern void device_del(struct device *dev); |
485 | extern int device_for_each_child(struct device *dev, void *data, |
486 | int (*fn)(struct device *dev, void *data)); |
487 | extern struct device *device_find_child(struct device *dev, void *data, |
488 | int (*match)(struct device *dev, void *data)); |
489 | extern int device_rename(struct device *dev, char *new_name); |
490 | extern int device_move(struct device *dev, struct device *new_parent, |
491 | enum dpm_order dpm_order); |
492 | extern const char *device_get_devnode(struct device *dev, |
493 | mode_t *mode, const char **tmp); |
494 | extern void *dev_get_drvdata(const struct device *dev); |
495 | extern void dev_set_drvdata(struct device *dev, void *data); |
496 | |
497 | /* |
498 | * Root device objects for grouping under /sys/devices |
499 | */ |
500 | extern struct device *__root_device_register(const char *name, |
501 | struct module *owner); |
502 | static inline struct device *root_device_register(const char *name) |
503 | { |
504 | return __root_device_register(name, THIS_MODULE); |
505 | } |
506 | extern void root_device_unregister(struct device *root); |
507 | |
508 | static inline void *dev_get_platdata(const struct device *dev) |
509 | { |
510 | return dev->platform_data; |
511 | } |
512 | |
513 | /* |
514 | * Manual binding of a device to driver. See drivers/base/bus.c |
515 | * for information on use. |
516 | */ |
517 | extern int __must_check device_bind_driver(struct device *dev); |
518 | extern void device_release_driver(struct device *dev); |
519 | extern int __must_check device_attach(struct device *dev); |
520 | extern int __must_check driver_attach(struct device_driver *drv); |
521 | extern int __must_check device_reprobe(struct device *dev); |
522 | |
523 | /* |
524 | * Easy functions for dynamically creating devices on the fly |
525 | */ |
526 | extern struct device *device_create_vargs(struct class *cls, |
527 | struct device *parent, |
528 | dev_t devt, |
529 | void *drvdata, |
530 | const char *fmt, |
531 | va_list vargs); |
532 | extern struct device *device_create(struct class *cls, struct device *parent, |
533 | dev_t devt, void *drvdata, |
534 | const char *fmt, ...) |
535 | __attribute__((format(printf, 5, 6))); |
536 | extern void device_destroy(struct class *cls, dev_t devt); |
537 | |
538 | /* |
539 | * Platform "fixup" functions - allow the platform to have their say |
540 | * about devices and actions that the general device layer doesn't |
541 | * know about. |
542 | */ |
543 | /* Notify platform of device discovery */ |
544 | extern int (*platform_notify)(struct device *dev); |
545 | |
546 | extern int (*platform_notify_remove)(struct device *dev); |
547 | |
548 | |
549 | /** |
550 | * get_device - atomically increment the reference count for the device. |
551 | * |
552 | */ |
553 | extern struct device *get_device(struct device *dev); |
554 | extern void put_device(struct device *dev); |
555 | |
556 | extern void wait_for_device_probe(void); |
557 | |
558 | #ifdef CONFIG_DEVTMPFS |
559 | extern int devtmpfs_create_node(struct device *dev); |
560 | extern int devtmpfs_delete_node(struct device *dev); |
561 | extern int devtmpfs_mount(const char *mountpoint); |
562 | #else |
563 | static inline int devtmpfs_create_node(struct device *dev) { return 0; } |
564 | static inline int devtmpfs_delete_node(struct device *dev) { return 0; } |
565 | static inline int devtmpfs_mount(const char *mountpoint) { return 0; } |
566 | #endif |
567 | |
568 | /* drivers/base/power/shutdown.c */ |
569 | extern void device_shutdown(void); |
570 | |
571 | /* drivers/base/sys.c */ |
572 | extern void sysdev_shutdown(void); |
573 | |
574 | /* debugging and troubleshooting/diagnostic helpers. */ |
575 | extern const char *dev_driver_string(const struct device *dev); |
576 | #define dev_printk(level, dev, format, arg...) \ |
577 | printk(level "%s %s: " format , dev_driver_string(dev) , \ |
578 | dev_name(dev) , ## arg) |
579 | |
580 | #define dev_emerg(dev, format, arg...) \ |
581 | dev_printk(KERN_EMERG , dev , format , ## arg) |
582 | #define dev_alert(dev, format, arg...) \ |
583 | dev_printk(KERN_ALERT , dev , format , ## arg) |
584 | #define dev_crit(dev, format, arg...) \ |
585 | dev_printk(KERN_CRIT , dev , format , ## arg) |
586 | #define dev_err(dev, format, arg...) \ |
587 | dev_printk(KERN_ERR , dev , format , ## arg) |
588 | #define dev_warn(dev, format, arg...) \ |
589 | dev_printk(KERN_WARNING , dev , format , ## arg) |
590 | #define dev_notice(dev, format, arg...) \ |
591 | dev_printk(KERN_NOTICE , dev , format , ## arg) |
592 | #define dev_info(dev, format, arg...) \ |
593 | dev_printk(KERN_INFO , dev , format , ## arg) |
594 | |
595 | #if defined(DEBUG) |
596 | #define dev_dbg(dev, format, arg...) \ |
597 | dev_printk(KERN_DEBUG , dev , format , ## arg) |
598 | #elif defined(CONFIG_DYNAMIC_DEBUG) |
599 | #define dev_dbg(dev, format, ...) do { \ |
600 | dynamic_dev_dbg(dev, format, ##__VA_ARGS__); \ |
601 | } while (0) |
602 | #else |
603 | #define dev_dbg(dev, format, arg...) \ |
604 | ({ if (0) dev_printk(KERN_DEBUG, dev, format, ##arg); 0; }) |
605 | #endif |
606 | |
607 | #ifdef VERBOSE_DEBUG |
608 | #define dev_vdbg dev_dbg |
609 | #else |
610 | |
611 | #define dev_vdbg(dev, format, arg...) \ |
612 | ({ if (0) dev_printk(KERN_DEBUG, dev, format, ##arg); 0; }) |
613 | #endif |
614 | |
615 | /* |
616 | * dev_WARN() acts like dev_printk(), but with the key difference |
617 | * of using a WARN/WARN_ON to get the message out, including the |
618 | * file/line information and a backtrace. |
619 | */ |
620 | #define dev_WARN(dev, format, arg...) \ |
621 | WARN(1, "Device: %s\n" format, dev_driver_string(dev), ## arg); |
622 | |
623 | /* Create alias, so I can be autoloaded. */ |
624 | #define MODULE_ALIAS_CHARDEV(major,minor) \ |
625 | MODULE_ALIAS("char-major-" __stringify(major) "-" __stringify(minor)) |
626 | #define MODULE_ALIAS_CHARDEV_MAJOR(major) \ |
627 | MODULE_ALIAS("char-major-" __stringify(major) "-*") |
628 | #endif /* _DEVICE_H_ */ |
629 |
Branches:
ben-wpan
ben-wpan-stefan
javiroman/ks7010
jz-2.6.34
jz-2.6.34-rc5
jz-2.6.34-rc6
jz-2.6.34-rc7
jz-2.6.35
jz-2.6.36
jz-2.6.37
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jz-2.6.39
jz-3.0
jz-3.1
jz-3.11
jz-3.12
jz-3.13
jz-3.15
jz-3.16
jz-3.18-dt
jz-3.2
jz-3.3
jz-3.4
jz-3.5
jz-3.6
jz-3.6-rc2-pwm
jz-3.9
jz-3.9-clk
jz-3.9-rc8
jz47xx
jz47xx-2.6.38
master
Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9