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| author | Jaroslav Kysela <perex@perex.cz> | 2008-11-12 18:31:37 +0300 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2008-11-12 19:07:37 +0300 |
| commit | c2eb9c4ea383aee154e7139395872c4da629e715 (patch) | |
| tree | 1a041003b3260354b6ad5e0ca728ff614f10ca01 | |
| parent | 9fb6198e8c574c6547fbfac0ae1eaf7894ddfdcc (diff) | |
| download | linux-c2eb9c4ea383aee154e7139395872c4da629e715.tar.xz | |
ALSA: when card identification is changed, change also /proc/asound symlink
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
| -rw-r--r-- | include/sound/info.h | 2 | ||||
| -rw-r--r-- | sound/core/info.c | 17 | ||||
| -rw-r--r-- | sound/core/init.c | 1 |
3 files changed, 20 insertions, 0 deletions
diff --git a/include/sound/info.h b/include/sound/info.h index 8ae72e74f898..46f702a76e4f 100644 --- a/include/sound/info.h +++ b/include/sound/info.h @@ -126,6 +126,7 @@ int snd_info_card_create(struct snd_card * card); int snd_info_card_register(struct snd_card * card); int snd_info_card_free(struct snd_card * card); void snd_info_card_disconnect(struct snd_card * card); +void snd_info_card_id_change(struct snd_card * card); int snd_info_register(struct snd_info_entry * entry); /* for card drivers */ @@ -160,6 +161,7 @@ static inline int snd_info_card_create(struct snd_card * card) { return 0; } static inline int snd_info_card_register(struct snd_card * card) { return 0; } static inline int snd_info_card_free(struct snd_card * card) { return 0; } static inline void snd_info_card_disconnect(struct snd_card * card) { } +static inline void snd_info_card_id_change(struct snd_card * card) { } static inline int snd_info_register(struct snd_info_entry * entry) { return 0; } static inline int snd_card_proc_new(struct snd_card *card, const char *name, diff --git a/sound/core/info.c b/sound/core/info.c index 527b207462b0..70fa87189f36 100644 --- a/sound/core/info.c +++ b/sound/core/info.c @@ -653,6 +653,23 @@ int snd_info_card_register(struct snd_card *card) } /* + * called on card->id change + */ +void snd_info_card_id_change(struct snd_card *card) +{ + mutex_lock(&info_mutex); + if (card->proc_root_link) { + snd_remove_proc_entry(snd_proc_root, card->proc_root_link); + card->proc_root_link = NULL; + } + if (strcmp(card->id, card->proc_root->name)) + card->proc_root_link = proc_symlink(card->id, + snd_proc_root, + card->proc_root->name); + mutex_unlock(&info_mutex); +} + +/* * de-register the card proc file * called from init.c */ diff --git a/sound/core/init.c b/sound/core/init.c index 5ff297d1d89a..af1e407ca27f 100644 --- a/sound/core/init.c +++ b/sound/core/init.c @@ -571,6 +571,7 @@ card_id_store_attr(struct device *dev, struct device_attribute *attr, goto __exist; } strcpy(card->id, buf1); + snd_info_card_id_change(card); mutex_unlock(&snd_card_mutex); return count; |