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| author | Takashi Iwai <tiwai@suse.de> | 2019-02-04 16:53:04 +0300 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2019-02-06 20:11:55 +0300 |
| commit | 7453e1dafdec076f87384c8647d2960affd57ecc (patch) | |
| tree | 2d82ae43f4669c943af79f50fc78793e6eac6000 /include/sound | |
| parent | eaffef0d5fca38939ac986de4625f4f070c49346 (diff) | |
| download | linux-7453e1dafdec076f87384c8647d2960affd57ecc.tar.xz | |
ALSA: info: Add standard helpers for card proc file entries
Two new helper functions are added here for cleaning up the existing
lengthy calls.
Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'include/sound')
| -rw-r--r-- | include/sound/info.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/include/sound/info.h b/include/sound/info.h index becdf66d2825..96530f7599e1 100644 --- a/include/sound/info.h +++ b/include/sound/info.h @@ -160,6 +160,13 @@ static inline void snd_info_set_text_ops(struct snd_info_entry *entry, entry->c.text.read = read; } +int snd_card_rw_proc_new(struct snd_card *card, const char *name, + void *private_data, + void (*read)(struct snd_info_entry *, + struct snd_info_buffer *), + void (*write)(struct snd_info_entry *entry, + struct snd_info_buffer *buffer)); + int snd_info_check_reserved_words(const char *str); #else @@ -189,10 +196,38 @@ static inline int snd_card_proc_new(struct snd_card *card, const char *name, static inline void snd_info_set_text_ops(struct snd_info_entry *entry __attribute__((unused)), void *private_data, void (*read)(struct snd_info_entry *, struct snd_info_buffer *)) {} +static inline int snd_card_rw_proc_new(struct snd_card *card, const char *name, + void *private_data, + void (*read)(struct snd_info_entry *, + struct snd_info_buffer *), + void (*write)(struct snd_info_entry *entry, + struct snd_info_buffer *buffer)) +{ + return 0; +} static inline int snd_info_check_reserved_words(const char *str) { return 1; } #endif +/** + * snd_card_ro_proc_new - Create a read-only text proc file entry for the card + * @card: the card instance + * @name: the file name + * @private_data: the arbitrary private data + * @read: the read callback + * + * This proc file entry will be registered via snd_card_register() call, and + * it will be removed automatically at the card removal, too. + */ +static inline int +snd_card_ro_proc_new(struct snd_card *card, const char *name, + void *private_data, + void (*read)(struct snd_info_entry *, + struct snd_info_buffer *)) +{ + return snd_card_rw_proc_new(card, name, private_data, read, NULL); +} + /* * OSS info part */ |