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
;
315 mutex_lock(&info_mutex
);
316 entry
= PDE_DATA(inode
);
317 if (entry
== NULL
|| ! entry
->p
) {
318 mutex_unlock(&info_mutex
);
321 if (!try_module_get(entry
->module
)) {
325 mode
= file
->f_flags
& O_ACCMODE
;
326 if (mode
== O_RDONLY
|| mode
== O_RDWR
) {
327 if ((entry
->content
== SNDRV_INFO_CONTENT_DATA
&&
328 entry
->c
.ops
->read
== NULL
)) {
333 if (mode
== O_WRONLY
|| mode
== O_RDWR
) {
334 if ((entry
->content
== SNDRV_INFO_CONTENT_DATA
&&
335 entry
->c
.ops
->write
== NULL
)) {
340 data
= kzalloc(sizeof(*data
), GFP_KERNEL
);
346 switch (entry
->content
) {
347 case SNDRV_INFO_CONTENT_TEXT
:
348 if (mode
== O_RDONLY
|| mode
== O_RDWR
) {
349 buffer
= kzalloc(sizeof(*buffer
), GFP_KERNEL
);
352 data
->rbuffer
= buffer
;
353 buffer
->len
= PAGE_SIZE
;
354 buffer
->buffer
= kmalloc(buffer
->len
, GFP_KERNEL
);
355 if (buffer
->buffer
== NULL
)
358 if (mode
== O_WRONLY
|| mode
== O_RDWR
) {
359 buffer
= kzalloc(sizeof(*buffer
), GFP_KERNEL
);
362 data
->wbuffer
= buffer
;
363 buffer
->len
= PAGE_SIZE
;
364 buffer
->buffer
= kmalloc(buffer
->len
, GFP_KERNEL
);
365 if (buffer
->buffer
== NULL
)
369 case SNDRV_INFO_CONTENT_DATA
: /* data */
370 if (entry
->c
.ops
->open
) {
371 if ((err
= entry
->c
.ops
->open(entry
, mode
,
372 &data
->file_private_data
)) < 0) {
379 file
->private_data
= data
;
380 mutex_unlock(&info_mutex
);
381 if (entry
->content
== SNDRV_INFO_CONTENT_TEXT
&&
382 (mode
== O_RDONLY
|| mode
== O_RDWR
)) {
383 if (entry
->c
.text
.read
) {
384 mutex_lock(&entry
->access
);
385 entry
->c
.text
.read(entry
, data
->rbuffer
);
386 mutex_unlock(&entry
->access
);
393 kfree(data
->rbuffer
->buffer
);
394 kfree(data
->rbuffer
);
397 kfree(data
->wbuffer
->buffer
);
398 kfree(data
->wbuffer
);
403 module_put(entry
->module
);
405 mutex_unlock(&info_mutex
);
409 static int snd_info_entry_release(struct inode
*inode
, struct file
*file
)
411 struct snd_info_entry
*entry
;
412 struct snd_info_private_data
*data
;
415 mode
= file
->f_flags
& O_ACCMODE
;
416 data
= file
->private_data
;
418 switch (entry
->content
) {
419 case SNDRV_INFO_CONTENT_TEXT
:
421 kfree(data
->rbuffer
->buffer
);
422 kfree(data
->rbuffer
);
425 if (entry
->c
.text
.write
) {
426 entry
->c
.text
.write(entry
, data
->wbuffer
);
427 if (data
->wbuffer
->error
) {
428 snd_printk(KERN_WARNING
"data write error to %s (%i)\n",
430 data
->wbuffer
->error
);
433 kfree(data
->wbuffer
->buffer
);
434 kfree(data
->wbuffer
);
437 case SNDRV_INFO_CONTENT_DATA
:
438 if (entry
->c
.ops
->release
)
439 entry
->c
.ops
->release(entry
, mode
,
440 data
->file_private_data
);
443 module_put(entry
->module
);
448 static unsigned int snd_info_entry_poll(struct file
*file
, poll_table
* wait
)
450 struct snd_info_private_data
*data
;
451 struct snd_info_entry
*entry
;
454 data
= file
->private_data
;
459 switch (entry
->content
) {
460 case SNDRV_INFO_CONTENT_DATA
:
461 if (entry
->c
.ops
->poll
)
462 return entry
->c
.ops
->poll(entry
,
463 data
->file_private_data
,
465 if (entry
->c
.ops
->read
)
466 mask
|= POLLIN
| POLLRDNORM
;
467 if (entry
->c
.ops
->write
)
468 mask
|= POLLOUT
| POLLWRNORM
;
474 static long snd_info_entry_ioctl(struct file
*file
, unsigned int cmd
,
477 struct snd_info_private_data
*data
;
478 struct snd_info_entry
*entry
;
480 data
= file
->private_data
;
484 switch (entry
->content
) {
485 case SNDRV_INFO_CONTENT_DATA
:
486 if (entry
->c
.ops
->ioctl
)
487 return entry
->c
.ops
->ioctl(entry
,
488 data
->file_private_data
,
495 static int snd_info_entry_mmap(struct file
*file
, struct vm_area_struct
*vma
)
497 struct inode
*inode
= file_inode(file
);
498 struct snd_info_private_data
*data
;
499 struct snd_info_entry
*entry
;
501 data
= file
->private_data
;
505 switch (entry
->content
) {
506 case SNDRV_INFO_CONTENT_DATA
:
507 if (entry
->c
.ops
->mmap
)
508 return entry
->c
.ops
->mmap(entry
,
509 data
->file_private_data
,
516 static const struct file_operations snd_info_entry_operations
=
518 .owner
= THIS_MODULE
,
519 .llseek
= snd_info_entry_llseek
,
520 .read
= snd_info_entry_read
,
521 .write
= snd_info_entry_write
,
522 .poll
= snd_info_entry_poll
,
523 .unlocked_ioctl
= snd_info_entry_ioctl
,
524 .mmap
= snd_info_entry_mmap
,
525 .open
= snd_info_entry_open
,
526 .release
= snd_info_entry_release
,
529 int __init
snd_info_init(void)
531 struct proc_dir_entry
*p
;
533 p
= proc_mkdir("asound", NULL
);
537 #ifdef CONFIG_SND_OSSEMUL
539 struct snd_info_entry
*entry
;
540 if ((entry
= snd_info_create_module_entry(THIS_MODULE
, "oss", NULL
)) == NULL
)
542 entry
->mode
= S_IFDIR
| S_IRUGO
| S_IXUGO
;
543 if (snd_info_register(entry
) < 0) {
544 snd_info_free_entry(entry
);
547 snd_oss_root
= entry
;
550 #if defined(CONFIG_SND_SEQUENCER) || defined(CONFIG_SND_SEQUENCER_MODULE)
552 struct snd_info_entry
*entry
;
553 if ((entry
= snd_info_create_module_entry(THIS_MODULE
, "seq", NULL
)) == NULL
)
555 entry
->mode
= S_IFDIR
| S_IRUGO
| S_IXUGO
;
556 if (snd_info_register(entry
) < 0) {
557 snd_info_free_entry(entry
);
560 snd_seq_root
= entry
;
563 snd_info_version_init();
564 snd_minor_info_init();
565 snd_minor_info_oss_init();
566 snd_card_info_init();
570 int __exit
snd_info_done(void)
572 snd_card_info_done();
573 snd_minor_info_oss_done();
574 snd_minor_info_done();
575 snd_info_version_done();
577 #if defined(CONFIG_SND_SEQUENCER) || defined(CONFIG_SND_SEQUENCER_MODULE)
578 snd_info_free_entry(snd_seq_root
);
580 #ifdef CONFIG_SND_OSSEMUL
581 snd_info_free_entry(snd_oss_root
);
583 snd_remove_proc_entry(NULL
, snd_proc_root
);
594 * create a card proc file
597 int snd_info_card_create(struct snd_card
*card
)
600 struct snd_info_entry
*entry
;
602 if (snd_BUG_ON(!card
))
605 sprintf(str
, "card%i", card
->number
);
606 if ((entry
= snd_info_create_module_entry(card
->module
, str
, NULL
)) == NULL
)
608 entry
->mode
= S_IFDIR
| S_IRUGO
| S_IXUGO
;
609 if (snd_info_register(entry
) < 0) {
610 snd_info_free_entry(entry
);
613 card
->proc_root
= entry
;
618 * register the card proc file
621 int snd_info_card_register(struct snd_card
*card
)
623 struct proc_dir_entry
*p
;
625 if (snd_BUG_ON(!card
))
628 if (!strcmp(card
->id
, card
->proc_root
->name
))
631 p
= proc_symlink(card
->id
, snd_proc_root
, card
->proc_root
->name
);
634 card
->proc_root_link
= p
;
639 * called on card->id change
641 void snd_info_card_id_change(struct snd_card
*card
)
643 mutex_lock(&info_mutex
);
644 if (card
->proc_root_link
) {
645 snd_remove_proc_entry(snd_proc_root
, card
->proc_root_link
);
646 card
->proc_root_link
= NULL
;
648 if (strcmp(card
->id
, card
->proc_root
->name
))
649 card
->proc_root_link
= proc_symlink(card
->id
,
651 card
->proc_root
->name
);
652 mutex_unlock(&info_mutex
);
656 * de-register the card proc file
659 void snd_info_card_disconnect(struct snd_card
*card
)
663 mutex_lock(&info_mutex
);
664 if (card
->proc_root_link
) {
665 snd_remove_proc_entry(snd_proc_root
, card
->proc_root_link
);
666 card
->proc_root_link
= NULL
;
669 snd_info_disconnect(card
->proc_root
);
670 mutex_unlock(&info_mutex
);
674 * release the card proc file resources
677 int snd_info_card_free(struct snd_card
*card
)
681 snd_info_free_entry(card
->proc_root
);
682 card
->proc_root
= NULL
;
688 * snd_info_get_line - read one line from the procfs buffer
689 * @buffer: the procfs buffer
690 * @line: the buffer to store
691 * @len: the max. buffer size - 1
693 * Reads one line from the buffer and stores the string.
695 * Returns zero if successful, or 1 if error or EOF.
697 int snd_info_get_line(struct snd_info_buffer
*buffer
, char *line
, int len
)
701 if (len
<= 0 || buffer
->stop
|| buffer
->error
)
704 c
= buffer
->buffer
[buffer
->curr
++];
706 if (buffer
->curr
>= buffer
->size
)
711 if (buffer
->curr
>= buffer
->size
) {
716 while (c
!= '\n' && !buffer
->stop
) {
717 c
= buffer
->buffer
[buffer
->curr
++];
718 if (buffer
->curr
>= buffer
->size
)
725 EXPORT_SYMBOL(snd_info_get_line
);
728 * snd_info_get_str - parse a string token
729 * @dest: the buffer to store the string token
730 * @src: the original string
731 * @len: the max. length of token - 1
733 * Parses the original string and copy a token to the given
736 * Returns the updated pointer of the original string so that
737 * it can be used for the next call.
739 const char *snd_info_get_str(char *dest
, const char *src
, int len
)
743 while (*src
== ' ' || *src
== '\t')
745 if (*src
== '"' || *src
== '\'') {
747 while (--len
> 0 && *src
&& *src
!= c
) {
753 while (--len
> 0 && *src
&& *src
!= ' ' && *src
!= '\t') {
758 while (*src
== ' ' || *src
== '\t')
763 EXPORT_SYMBOL(snd_info_get_str
);
766 * snd_info_create_entry - create an info entry
767 * @name: the proc file name
769 * Creates an info entry with the given file name and initializes as
772 * Usually called from other functions such as
773 * snd_info_create_card_entry().
775 * Returns the pointer of the new instance, or NULL on failure.
777 static struct snd_info_entry
*snd_info_create_entry(const char *name
)
779 struct snd_info_entry
*entry
;
780 entry
= kzalloc(sizeof(*entry
), GFP_KERNEL
);
783 entry
->name
= kstrdup(name
, GFP_KERNEL
);
784 if (entry
->name
== NULL
) {
788 entry
->mode
= S_IFREG
| S_IRUGO
;
789 entry
->content
= SNDRV_INFO_CONTENT_TEXT
;
790 mutex_init(&entry
->access
);
791 INIT_LIST_HEAD(&entry
->children
);
792 INIT_LIST_HEAD(&entry
->list
);
797 * snd_info_create_module_entry - create an info entry for the given module
798 * @module: the module pointer
799 * @name: the file name
800 * @parent: the parent directory
802 * Creates a new info entry and assigns it to the given module.
804 * Returns the pointer of the new instance, or NULL on failure.
806 struct snd_info_entry
*snd_info_create_module_entry(struct module
* module
,
808 struct snd_info_entry
*parent
)
810 struct snd_info_entry
*entry
= snd_info_create_entry(name
);
812 entry
->module
= module
;
813 entry
->parent
= parent
;
818 EXPORT_SYMBOL(snd_info_create_module_entry
);
821 * snd_info_create_card_entry - create an info entry for the given card
822 * @card: the card instance
823 * @name: the file name
824 * @parent: the parent directory
826 * Creates a new info entry and assigns it to the given card.
828 * Returns the pointer of the new instance, or NULL on failure.
830 struct snd_info_entry
*snd_info_create_card_entry(struct snd_card
*card
,
832 struct snd_info_entry
* parent
)
834 struct snd_info_entry
*entry
= snd_info_create_entry(name
);
836 entry
->module
= card
->module
;
838 entry
->parent
= parent
;
843 EXPORT_SYMBOL(snd_info_create_card_entry
);
845 static void snd_info_disconnect(struct snd_info_entry
*entry
)
847 struct list_head
*p
, *n
;
848 struct proc_dir_entry
*root
;
850 list_for_each_safe(p
, n
, &entry
->children
) {
851 snd_info_disconnect(list_entry(p
, struct snd_info_entry
, list
));
856 list_del_init(&entry
->list
);
857 root
= entry
->parent
== NULL
? snd_proc_root
: entry
->parent
->p
;
859 snd_remove_proc_entry(root
, entry
->p
);
863 static int snd_info_dev_free_entry(struct snd_device
*device
)
865 struct snd_info_entry
*entry
= device
->device_data
;
866 snd_info_free_entry(entry
);
870 static int snd_info_dev_register_entry(struct snd_device
*device
)
872 struct snd_info_entry
*entry
= device
->device_data
;
873 return snd_info_register(entry
);
877 * snd_card_proc_new - create an info entry for the given card
878 * @card: the card instance
879 * @name: the file name
880 * @entryp: the pointer to store the new info entry
882 * Creates a new info entry and assigns it to the given card.
883 * Unlike snd_info_create_card_entry(), this function registers the
884 * info entry as an ALSA device component, so that it can be
885 * unregistered/released without explicit call.
886 * Also, you don't have to register this entry via snd_info_register(),
887 * since this will be registered by snd_card_register() automatically.
889 * The parent is assumed as card->proc_root.
891 * For releasing this entry, use snd_device_free() instead of
892 * snd_info_free_entry().
894 * Returns zero if successful, or a negative error code on failure.
896 int snd_card_proc_new(struct snd_card
*card
, const char *name
,
897 struct snd_info_entry
**entryp
)
899 static struct snd_device_ops ops
= {
900 .dev_free
= snd_info_dev_free_entry
,
901 .dev_register
= snd_info_dev_register_entry
,
902 /* disconnect is done via snd_info_card_disconnect() */
904 struct snd_info_entry
*entry
;
907 entry
= snd_info_create_card_entry(card
, name
, card
->proc_root
);
910 if ((err
= snd_device_new(card
, SNDRV_DEV_INFO
, entry
, &ops
)) < 0) {
911 snd_info_free_entry(entry
);
919 EXPORT_SYMBOL(snd_card_proc_new
);
922 * snd_info_free_entry - release the info entry
923 * @entry: the info entry
925 * Releases the info entry. Don't call this after registered.
927 void snd_info_free_entry(struct snd_info_entry
* entry
)
932 mutex_lock(&info_mutex
);
933 snd_info_disconnect(entry
);
934 mutex_unlock(&info_mutex
);
937 if (entry
->private_free
)
938 entry
->private_free(entry
);
942 EXPORT_SYMBOL(snd_info_free_entry
);
945 * snd_info_register - register the info entry
946 * @entry: the info entry
948 * Registers the proc info entry.
950 * Returns zero if successful, or a negative error code on failure.
952 int snd_info_register(struct snd_info_entry
* entry
)
954 struct proc_dir_entry
*root
, *p
= NULL
;
956 if (snd_BUG_ON(!entry
))
958 root
= entry
->parent
== NULL
? snd_proc_root
: entry
->parent
->p
;
959 mutex_lock(&info_mutex
);
960 if (S_ISDIR(entry
->mode
)) {
961 p
= proc_mkdir_mode(entry
->name
, entry
->mode
, root
);
963 mutex_unlock(&info_mutex
);
967 p
= proc_create_data(entry
->name
, entry
->mode
, root
,
968 &snd_info_entry_operations
, entry
);
970 mutex_unlock(&info_mutex
);
973 p
->size
= entry
->size
;
977 list_add_tail(&entry
->list
, &entry
->parent
->children
);
978 mutex_unlock(&info_mutex
);
982 EXPORT_SYMBOL(snd_info_register
);
988 static struct snd_info_entry
*snd_info_version_entry
;
990 static void snd_info_version_read(struct snd_info_entry
*entry
, struct snd_info_buffer
*buffer
)
993 "Advanced Linux Sound Architecture Driver Version k%s.\n",
994 init_utsname()->release
);
997 static int __init
snd_info_version_init(void)
999 struct snd_info_entry
*entry
;
1001 entry
= snd_info_create_module_entry(THIS_MODULE
, "version", NULL
);
1004 entry
->c
.text
.read
= snd_info_version_read
;
1005 if (snd_info_register(entry
) < 0) {
1006 snd_info_free_entry(entry
);
1009 snd_info_version_entry
= entry
;
1013 static int __exit
snd_info_version_done(void)
1015 snd_info_free_entry(snd_info_version_entry
);
1019 #endif /* CONFIG_PROC_FS */