2 * Information interface for ALSA driver
3 * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 #include <linux/init.h>
23 #include <linux/time.h>
25 #include <linux/slab.h>
26 #include <linux/string.h>
27 #include <linux/module.h>
28 #include <sound/core.h>
29 #include <sound/minors.h>
30 #include <sound/info.h>
31 #include <linux/utsname.h>
32 #include <linux/proc_fs.h>
33 #include <linux/mutex.h>
42 int snd_info_check_reserved_words(const char *str
)
44 static char *reserved
[] =
59 char **xstr
= reserved
;
62 if (!strcmp(*xstr
, str
))
66 if (!strncmp(str
, "card", 4))
71 static DEFINE_MUTEX(info_mutex
);
73 struct snd_info_private_data
{
74 struct snd_info_buffer
*rbuffer
;
75 struct snd_info_buffer
*wbuffer
;
76 struct snd_info_entry
*entry
;
77 void *file_private_data
;
80 static int snd_info_version_init(void);
81 static int snd_info_version_done(void);
82 static void snd_info_disconnect(struct snd_info_entry
*entry
);
85 /* resize the proc r/w buffer */
86 static int resize_info_buffer(struct snd_info_buffer
*buffer
,
91 nsize
= PAGE_ALIGN(nsize
);
92 nbuf
= krealloc(buffer
->buffer
, nsize
, GFP_KERNEL
);
96 buffer
->buffer
= nbuf
;
102 * snd_iprintf - printf on the procfs buffer
103 * @buffer: the procfs buffer
104 * @fmt: the printf format
106 * Outputs the string on the procfs buffer just like printf().
108 * Returns the size of output string.
110 int snd_iprintf(struct snd_info_buffer
*buffer
, const char *fmt
, ...)
117 if (buffer
->stop
|| buffer
->error
)
119 len
= buffer
->len
- buffer
->size
;
124 res
= vsnprintf(buffer
->buffer
+ buffer
->curr
, len
, fmt
, ap
);
128 err
= resize_info_buffer(buffer
, buffer
->len
+ PAGE_SIZE
);
131 len
= buffer
->len
- buffer
->size
;
142 EXPORT_SYMBOL(snd_iprintf
);
148 static struct proc_dir_entry
*snd_proc_root
;
149 struct snd_info_entry
*snd_seq_root
;
150 EXPORT_SYMBOL(snd_seq_root
);
152 #ifdef CONFIG_SND_OSSEMUL
153 struct snd_info_entry
*snd_oss_root
;
156 static void snd_remove_proc_entry(struct proc_dir_entry
*parent
,
157 struct proc_dir_entry
*de
)
160 remove_proc_entry(de
->name
, parent
);
163 static loff_t
snd_info_entry_llseek(struct file
*file
, loff_t offset
, int orig
)
165 struct snd_info_private_data
*data
;
166 struct snd_info_entry
*entry
;
167 loff_t ret
= -EINVAL
, size
;
169 data
= file
->private_data
;
171 mutex_lock(&entry
->access
);
172 if (entry
->content
== SNDRV_INFO_CONTENT_DATA
&&
173 entry
->c
.ops
->llseek
) {
174 offset
= entry
->c
.ops
->llseek(entry
,
175 data
->file_private_data
,
179 if (entry
->content
== SNDRV_INFO_CONTENT_DATA
)
187 offset
+= file
->f_pos
;
199 if (size
&& offset
> size
)
201 file
->f_pos
= offset
;
204 mutex_unlock(&entry
->access
);
208 static ssize_t
snd_info_entry_read(struct file
*file
, char __user
*buffer
,
209 size_t count
, loff_t
* offset
)
211 struct snd_info_private_data
*data
;
212 struct snd_info_entry
*entry
;
213 struct snd_info_buffer
*buf
;
217 data
= file
->private_data
;
218 if (snd_BUG_ON(!data
))
221 if (pos
< 0 || (long) pos
!= pos
|| (ssize_t
) count
< 0)
223 if ((unsigned long) pos
+ (unsigned long) count
< (unsigned long) pos
)
226 switch (entry
->content
) {
227 case SNDRV_INFO_CONTENT_TEXT
:
231 if (pos
>= buf
->size
)
233 size
= buf
->size
- pos
;
234 size
= min(count
, size
);
235 if (copy_to_user(buffer
, buf
->buffer
+ pos
, size
))
238 case SNDRV_INFO_CONTENT_DATA
:
239 if (pos
>= entry
->size
)
241 if (entry
->c
.ops
->read
) {
242 size
= entry
->size
- pos
;
243 size
= min(count
, size
);
244 size
= entry
->c
.ops
->read(entry
,
245 data
->file_private_data
,
246 file
, buffer
, size
, pos
);
250 if ((ssize_t
) size
> 0)
251 *offset
= pos
+ size
;
255 static ssize_t
snd_info_entry_write(struct file
*file
, const char __user
*buffer
,
256 size_t count
, loff_t
* offset
)
258 struct snd_info_private_data
*data
;
259 struct snd_info_entry
*entry
;
260 struct snd_info_buffer
*buf
;
264 data
= file
->private_data
;
265 if (snd_BUG_ON(!data
))
269 if (pos
< 0 || (long) pos
!= pos
|| (ssize_t
) count
< 0)
271 if ((unsigned long) pos
+ (unsigned long) count
< (unsigned long) pos
)
273 switch (entry
->content
) {
274 case SNDRV_INFO_CONTENT_TEXT
:
278 mutex_lock(&entry
->access
);
279 if (pos
+ count
>= buf
->len
) {
280 if (resize_info_buffer(buf
, pos
+ count
)) {
281 mutex_unlock(&entry
->access
);
285 if (copy_from_user(buf
->buffer
+ pos
, buffer
, count
)) {
286 mutex_unlock(&entry
->access
);
289 buf
->size
= pos
+ count
;
290 mutex_unlock(&entry
->access
);
293 case SNDRV_INFO_CONTENT_DATA
:
294 if (entry
->c
.ops
->write
&& count
> 0) {
295 size_t maxsize
= entry
->size
- pos
;
296 count
= min(count
, maxsize
);
297 size
= entry
->c
.ops
->write(entry
,
298 data
->file_private_data
,
299 file
, buffer
, count
, pos
);
303 if ((ssize_t
) size
> 0)
304 *offset
= pos
+ size
;
308 static int snd_info_entry_open(struct inode
*inode
, struct file
*file
)
310 struct snd_info_entry
*entry
;
311 struct snd_info_private_data
*data
;
312 struct snd_info_buffer
*buffer
;
313 struct proc_dir_entry
*p
;
316 mutex_lock(&info_mutex
);
318 entry
= p
== NULL
? NULL
: (struct snd_info_entry
*)p
->data
;
319 if (entry
== NULL
|| ! entry
->p
) {
320 mutex_unlock(&info_mutex
);
323 if (!try_module_get(entry
->module
)) {
327 mode
= file
->f_flags
& O_ACCMODE
;
328 if (mode
== O_RDONLY
|| mode
== O_RDWR
) {
329 if ((entry
->content
== SNDRV_INFO_CONTENT_DATA
&&
330 entry
->c
.ops
->read
== NULL
)) {
335 if (mode
== O_WRONLY
|| mode
== O_RDWR
) {
336 if ((entry
->content
== SNDRV_INFO_CONTENT_DATA
&&
337 entry
->c
.ops
->write
== NULL
)) {
342 data
= kzalloc(sizeof(*data
), GFP_KERNEL
);
348 switch (entry
->content
) {
349 case SNDRV_INFO_CONTENT_TEXT
:
350 if (mode
== O_RDONLY
|| mode
== O_RDWR
) {
351 buffer
= kzalloc(sizeof(*buffer
), GFP_KERNEL
);
354 data
->rbuffer
= buffer
;
355 buffer
->len
= PAGE_SIZE
;
356 buffer
->buffer
= kmalloc(buffer
->len
, GFP_KERNEL
);
357 if (buffer
->buffer
== NULL
)
360 if (mode
== O_WRONLY
|| mode
== O_RDWR
) {
361 buffer
= kzalloc(sizeof(*buffer
), GFP_KERNEL
);
364 data
->wbuffer
= buffer
;
365 buffer
->len
= PAGE_SIZE
;
366 buffer
->buffer
= kmalloc(buffer
->len
, GFP_KERNEL
);
367 if (buffer
->buffer
== NULL
)
371 case SNDRV_INFO_CONTENT_DATA
: /* data */
372 if (entry
->c
.ops
->open
) {
373 if ((err
= entry
->c
.ops
->open(entry
, mode
,
374 &data
->file_private_data
)) < 0) {
381 file
->private_data
= data
;
382 mutex_unlock(&info_mutex
);
383 if (entry
->content
== SNDRV_INFO_CONTENT_TEXT
&&
384 (mode
== O_RDONLY
|| mode
== O_RDWR
)) {
385 if (entry
->c
.text
.read
) {
386 mutex_lock(&entry
->access
);
387 entry
->c
.text
.read(entry
, data
->rbuffer
);
388 mutex_unlock(&entry
->access
);
395 kfree(data
->rbuffer
->buffer
);
396 kfree(data
->rbuffer
);
399 kfree(data
->wbuffer
->buffer
);
400 kfree(data
->wbuffer
);
405 module_put(entry
->module
);
407 mutex_unlock(&info_mutex
);
411 static int snd_info_entry_release(struct inode
*inode
, struct file
*file
)
413 struct snd_info_entry
*entry
;
414 struct snd_info_private_data
*data
;
417 mode
= file
->f_flags
& O_ACCMODE
;
418 data
= file
->private_data
;
420 switch (entry
->content
) {
421 case SNDRV_INFO_CONTENT_TEXT
:
423 kfree(data
->rbuffer
->buffer
);
424 kfree(data
->rbuffer
);
427 if (entry
->c
.text
.write
) {
428 entry
->c
.text
.write(entry
, data
->wbuffer
);
429 if (data
->wbuffer
->error
) {
430 snd_printk(KERN_WARNING
"data write error to %s (%i)\n",
432 data
->wbuffer
->error
);
435 kfree(data
->wbuffer
->buffer
);
436 kfree(data
->wbuffer
);
439 case SNDRV_INFO_CONTENT_DATA
:
440 if (entry
->c
.ops
->release
)
441 entry
->c
.ops
->release(entry
, mode
,
442 data
->file_private_data
);
445 module_put(entry
->module
);
450 static unsigned int snd_info_entry_poll(struct file
*file
, poll_table
* wait
)
452 struct snd_info_private_data
*data
;
453 struct snd_info_entry
*entry
;
456 data
= file
->private_data
;
461 switch (entry
->content
) {
462 case SNDRV_INFO_CONTENT_DATA
:
463 if (entry
->c
.ops
->poll
)
464 return entry
->c
.ops
->poll(entry
,
465 data
->file_private_data
,
467 if (entry
->c
.ops
->read
)
468 mask
|= POLLIN
| POLLRDNORM
;
469 if (entry
->c
.ops
->write
)
470 mask
|= POLLOUT
| POLLWRNORM
;
476 static long snd_info_entry_ioctl(struct file
*file
, unsigned int cmd
,
479 struct snd_info_private_data
*data
;
480 struct snd_info_entry
*entry
;
482 data
= file
->private_data
;
486 switch (entry
->content
) {
487 case SNDRV_INFO_CONTENT_DATA
:
488 if (entry
->c
.ops
->ioctl
)
489 return entry
->c
.ops
->ioctl(entry
,
490 data
->file_private_data
,
497 static int snd_info_entry_mmap(struct file
*file
, struct vm_area_struct
*vma
)
499 struct inode
*inode
= file
->f_path
.dentry
->d_inode
;
500 struct snd_info_private_data
*data
;
501 struct snd_info_entry
*entry
;
503 data
= file
->private_data
;
507 switch (entry
->content
) {
508 case SNDRV_INFO_CONTENT_DATA
:
509 if (entry
->c
.ops
->mmap
)
510 return entry
->c
.ops
->mmap(entry
,
511 data
->file_private_data
,
518 static const struct file_operations snd_info_entry_operations
=
520 .owner
= THIS_MODULE
,
521 .llseek
= snd_info_entry_llseek
,
522 .read
= snd_info_entry_read
,
523 .write
= snd_info_entry_write
,
524 .poll
= snd_info_entry_poll
,
525 .unlocked_ioctl
= snd_info_entry_ioctl
,
526 .mmap
= snd_info_entry_mmap
,
527 .open
= snd_info_entry_open
,
528 .release
= snd_info_entry_release
,
531 int __init
snd_info_init(void)
533 struct proc_dir_entry
*p
;
535 p
= proc_mkdir("asound", NULL
);
539 #ifdef CONFIG_SND_OSSEMUL
541 struct snd_info_entry
*entry
;
542 if ((entry
= snd_info_create_module_entry(THIS_MODULE
, "oss", NULL
)) == NULL
)
544 entry
->mode
= S_IFDIR
| S_IRUGO
| S_IXUGO
;
545 if (snd_info_register(entry
) < 0) {
546 snd_info_free_entry(entry
);
549 snd_oss_root
= entry
;
552 #if defined(CONFIG_SND_SEQUENCER) || defined(CONFIG_SND_SEQUENCER_MODULE)
554 struct snd_info_entry
*entry
;
555 if ((entry
= snd_info_create_module_entry(THIS_MODULE
, "seq", NULL
)) == NULL
)
557 entry
->mode
= S_IFDIR
| S_IRUGO
| S_IXUGO
;
558 if (snd_info_register(entry
) < 0) {
559 snd_info_free_entry(entry
);
562 snd_seq_root
= entry
;
565 snd_info_version_init();
566 snd_minor_info_init();
567 snd_minor_info_oss_init();
568 snd_card_info_init();
572 int __exit
snd_info_done(void)
574 snd_card_info_done();
575 snd_minor_info_oss_done();
576 snd_minor_info_done();
577 snd_info_version_done();
579 #if defined(CONFIG_SND_SEQUENCER) || defined(CONFIG_SND_SEQUENCER_MODULE)
580 snd_info_free_entry(snd_seq_root
);
582 #ifdef CONFIG_SND_OSSEMUL
583 snd_info_free_entry(snd_oss_root
);
585 snd_remove_proc_entry(NULL
, snd_proc_root
);
596 * create a card proc file
599 int snd_info_card_create(struct snd_card
*card
)
602 struct snd_info_entry
*entry
;
604 if (snd_BUG_ON(!card
))
607 sprintf(str
, "card%i", card
->number
);
608 if ((entry
= snd_info_create_module_entry(card
->module
, str
, NULL
)) == NULL
)
610 entry
->mode
= S_IFDIR
| S_IRUGO
| S_IXUGO
;
611 if (snd_info_register(entry
) < 0) {
612 snd_info_free_entry(entry
);
615 card
->proc_root
= entry
;
620 * register the card proc file
623 int snd_info_card_register(struct snd_card
*card
)
625 struct proc_dir_entry
*p
;
627 if (snd_BUG_ON(!card
))
630 if (!strcmp(card
->id
, card
->proc_root
->name
))
633 p
= proc_symlink(card
->id
, snd_proc_root
, card
->proc_root
->name
);
636 card
->proc_root_link
= p
;
641 * called on card->id change
643 void snd_info_card_id_change(struct snd_card
*card
)
645 mutex_lock(&info_mutex
);
646 if (card
->proc_root_link
) {
647 snd_remove_proc_entry(snd_proc_root
, card
->proc_root_link
);
648 card
->proc_root_link
= NULL
;
650 if (strcmp(card
->id
, card
->proc_root
->name
))
651 card
->proc_root_link
= proc_symlink(card
->id
,
653 card
->proc_root
->name
);
654 mutex_unlock(&info_mutex
);
658 * de-register the card proc file
661 void snd_info_card_disconnect(struct snd_card
*card
)
665 mutex_lock(&info_mutex
);
666 if (card
->proc_root_link
) {
667 snd_remove_proc_entry(snd_proc_root
, card
->proc_root_link
);
668 card
->proc_root_link
= NULL
;
671 snd_info_disconnect(card
->proc_root
);
672 mutex_unlock(&info_mutex
);
676 * release the card proc file resources
679 int snd_info_card_free(struct snd_card
*card
)
683 snd_info_free_entry(card
->proc_root
);
684 card
->proc_root
= NULL
;
690 * snd_info_get_line - read one line from the procfs buffer
691 * @buffer: the procfs buffer
692 * @line: the buffer to store
693 * @len: the max. buffer size - 1
695 * Reads one line from the buffer and stores the string.
697 * Returns zero if successful, or 1 if error or EOF.
699 int snd_info_get_line(struct snd_info_buffer
*buffer
, char *line
, int len
)
703 if (len
<= 0 || buffer
->stop
|| buffer
->error
)
706 c
= buffer
->buffer
[buffer
->curr
++];
708 if (buffer
->curr
>= buffer
->size
)
713 if (buffer
->curr
>= buffer
->size
) {
718 while (c
!= '\n' && !buffer
->stop
) {
719 c
= buffer
->buffer
[buffer
->curr
++];
720 if (buffer
->curr
>= buffer
->size
)
727 EXPORT_SYMBOL(snd_info_get_line
);
730 * snd_info_get_str - parse a string token
731 * @dest: the buffer to store the string token
732 * @src: the original string
733 * @len: the max. length of token - 1
735 * Parses the original string and copy a token to the given
738 * Returns the updated pointer of the original string so that
739 * it can be used for the next call.
741 const char *snd_info_get_str(char *dest
, const char *src
, int len
)
745 while (*src
== ' ' || *src
== '\t')
747 if (*src
== '"' || *src
== '\'') {
749 while (--len
> 0 && *src
&& *src
!= c
) {
755 while (--len
> 0 && *src
&& *src
!= ' ' && *src
!= '\t') {
760 while (*src
== ' ' || *src
== '\t')
765 EXPORT_SYMBOL(snd_info_get_str
);
768 * snd_info_create_entry - create an info entry
769 * @name: the proc file name
771 * Creates an info entry with the given file name and initializes as
774 * Usually called from other functions such as
775 * snd_info_create_card_entry().
777 * Returns the pointer of the new instance, or NULL on failure.
779 static struct snd_info_entry
*snd_info_create_entry(const char *name
)
781 struct snd_info_entry
*entry
;
782 entry
= kzalloc(sizeof(*entry
), GFP_KERNEL
);
785 entry
->name
= kstrdup(name
, GFP_KERNEL
);
786 if (entry
->name
== NULL
) {
790 entry
->mode
= S_IFREG
| S_IRUGO
;
791 entry
->content
= SNDRV_INFO_CONTENT_TEXT
;
792 mutex_init(&entry
->access
);
793 INIT_LIST_HEAD(&entry
->children
);
794 INIT_LIST_HEAD(&entry
->list
);
799 * snd_info_create_module_entry - create an info entry for the given module
800 * @module: the module pointer
801 * @name: the file name
802 * @parent: the parent directory
804 * Creates a new info entry and assigns it to the given module.
806 * Returns the pointer of the new instance, or NULL on failure.
808 struct snd_info_entry
*snd_info_create_module_entry(struct module
* module
,
810 struct snd_info_entry
*parent
)
812 struct snd_info_entry
*entry
= snd_info_create_entry(name
);
814 entry
->module
= module
;
815 entry
->parent
= parent
;
820 EXPORT_SYMBOL(snd_info_create_module_entry
);
823 * snd_info_create_card_entry - create an info entry for the given card
824 * @card: the card instance
825 * @name: the file name
826 * @parent: the parent directory
828 * Creates a new info entry and assigns it to the given card.
830 * Returns the pointer of the new instance, or NULL on failure.
832 struct snd_info_entry
*snd_info_create_card_entry(struct snd_card
*card
,
834 struct snd_info_entry
* parent
)
836 struct snd_info_entry
*entry
= snd_info_create_entry(name
);
838 entry
->module
= card
->module
;
840 entry
->parent
= parent
;
845 EXPORT_SYMBOL(snd_info_create_card_entry
);
847 static void snd_info_disconnect(struct snd_info_entry
*entry
)
849 struct list_head
*p
, *n
;
850 struct proc_dir_entry
*root
;
852 list_for_each_safe(p
, n
, &entry
->children
) {
853 snd_info_disconnect(list_entry(p
, struct snd_info_entry
, list
));
858 list_del_init(&entry
->list
);
859 root
= entry
->parent
== NULL
? snd_proc_root
: entry
->parent
->p
;
861 snd_remove_proc_entry(root
, entry
->p
);
865 static int snd_info_dev_free_entry(struct snd_device
*device
)
867 struct snd_info_entry
*entry
= device
->device_data
;
868 snd_info_free_entry(entry
);
872 static int snd_info_dev_register_entry(struct snd_device
*device
)
874 struct snd_info_entry
*entry
= device
->device_data
;
875 return snd_info_register(entry
);
879 * snd_card_proc_new - create an info entry for the given card
880 * @card: the card instance
881 * @name: the file name
882 * @entryp: the pointer to store the new info entry
884 * Creates a new info entry and assigns it to the given card.
885 * Unlike snd_info_create_card_entry(), this function registers the
886 * info entry as an ALSA device component, so that it can be
887 * unregistered/released without explicit call.
888 * Also, you don't have to register this entry via snd_info_register(),
889 * since this will be registered by snd_card_register() automatically.
891 * The parent is assumed as card->proc_root.
893 * For releasing this entry, use snd_device_free() instead of
894 * snd_info_free_entry().
896 * Returns zero if successful, or a negative error code on failure.
898 int snd_card_proc_new(struct snd_card
*card
, const char *name
,
899 struct snd_info_entry
**entryp
)
901 static struct snd_device_ops ops
= {
902 .dev_free
= snd_info_dev_free_entry
,
903 .dev_register
= snd_info_dev_register_entry
,
904 /* disconnect is done via snd_info_card_disconnect() */
906 struct snd_info_entry
*entry
;
909 entry
= snd_info_create_card_entry(card
, name
, card
->proc_root
);
912 if ((err
= snd_device_new(card
, SNDRV_DEV_INFO
, entry
, &ops
)) < 0) {
913 snd_info_free_entry(entry
);
921 EXPORT_SYMBOL(snd_card_proc_new
);
924 * snd_info_free_entry - release the info entry
925 * @entry: the info entry
927 * Releases the info entry. Don't call this after registered.
929 void snd_info_free_entry(struct snd_info_entry
* entry
)
934 mutex_lock(&info_mutex
);
935 snd_info_disconnect(entry
);
936 mutex_unlock(&info_mutex
);
939 if (entry
->private_free
)
940 entry
->private_free(entry
);
944 EXPORT_SYMBOL(snd_info_free_entry
);
947 * snd_info_register - register the info entry
948 * @entry: the info entry
950 * Registers the proc info entry.
952 * Returns zero if successful, or a negative error code on failure.
954 int snd_info_register(struct snd_info_entry
* entry
)
956 struct proc_dir_entry
*root
, *p
= NULL
;
958 if (snd_BUG_ON(!entry
))
960 root
= entry
->parent
== NULL
? snd_proc_root
: entry
->parent
->p
;
961 mutex_lock(&info_mutex
);
962 p
= create_proc_entry(entry
->name
, entry
->mode
, root
);
964 mutex_unlock(&info_mutex
);
967 if (!S_ISDIR(entry
->mode
))
968 p
->proc_fops
= &snd_info_entry_operations
;
969 p
->size
= entry
->size
;
973 list_add_tail(&entry
->list
, &entry
->parent
->children
);
974 mutex_unlock(&info_mutex
);
978 EXPORT_SYMBOL(snd_info_register
);
984 static struct snd_info_entry
*snd_info_version_entry
;
986 static void snd_info_version_read(struct snd_info_entry
*entry
, struct snd_info_buffer
*buffer
)
989 "Advanced Linux Sound Architecture Driver Version k%s.\n",
990 init_utsname()->release
);
993 static int __init
snd_info_version_init(void)
995 struct snd_info_entry
*entry
;
997 entry
= snd_info_create_module_entry(THIS_MODULE
, "version", NULL
);
1000 entry
->c
.text
.read
= snd_info_version_read
;
1001 if (snd_info_register(entry
) < 0) {
1002 snd_info_free_entry(entry
);
1005 snd_info_version_entry
= entry
;
1009 static int __exit
snd_info_version_done(void)
1011 snd_info_free_entry(snd_info_version_entry
);
1015 #endif /* CONFIG_PROC_FS */