diff options
Diffstat (limited to 'include/sound/info.h')
| -rw-r--r-- | include/sound/info.h | 37 |
1 files changed, 25 insertions, 12 deletions
diff --git a/include/sound/info.h b/include/sound/info.h index 9ca1a493d370..67390ee846aa 100644 --- a/include/sound/info.h +++ b/include/sound/info.h @@ -23,6 +23,8 @@ */ #include <linux/poll.h> +#include <linux/seq_file.h> +#include <sound/core.h> /* buffer for information */ struct snd_info_buffer { @@ -90,16 +92,14 @@ struct snd_info_entry { struct list_head list; }; -#if defined(CONFIG_SND_OSSEMUL) && defined(CONFIG_PROC_FS) +#if defined(CONFIG_SND_OSSEMUL) && defined(CONFIG_SND_PROC_FS) int snd_info_minor_register(void); -int snd_info_minor_unregister(void); #else -#define snd_info_minor_register() /* NOP */ -#define snd_info_minor_unregister() /* NOP */ +#define snd_info_minor_register() 0 #endif -#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS extern struct snd_info_entry *snd_seq_root; #ifdef CONFIG_SND_OSSEMUL @@ -110,8 +110,18 @@ void snd_card_info_read_oss(struct snd_info_buffer *buffer); static inline void snd_card_info_read_oss(struct snd_info_buffer *buffer) {} #endif -__printf(2, 3) -int snd_iprintf(struct snd_info_buffer *buffer, const char *fmt, ...); +/** + * snd_iprintf - printf on the procfs buffer + * @buf: the procfs buffer + * @fmt: the printf format + * + * Outputs the string on the procfs buffer just like printf(). + * + * Return: zero for success, or a negative error code. + */ +#define snd_iprintf(buf, fmt, args...) \ + seq_printf((struct seq_file *)(buf)->buffer, fmt, ##args) + int snd_info_init(void); int snd_info_done(void); @@ -135,8 +145,12 @@ void snd_info_card_id_change(struct snd_card *card); int snd_info_register(struct snd_info_entry *entry); /* for card drivers */ -int snd_card_proc_new(struct snd_card *card, const char *name, - struct snd_info_entry **entryp); +static inline int snd_card_proc_new(struct snd_card *card, const char *name, + struct snd_info_entry **entryp) +{ + *entryp = snd_info_create_card_entry(card, name, card->proc_root); + return *entryp ? 0 : -ENOMEM; +} static inline void snd_info_set_text_ops(struct snd_info_entry *entry, void *private_data, @@ -175,7 +189,6 @@ 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_info_check_reserved_words(const char *str) { return 1; } #endif @@ -184,7 +197,7 @@ static inline int snd_info_check_reserved_words(const char *str) { return 1; } * OSS info part */ -#if defined(CONFIG_SND_OSSEMUL) && defined(CONFIG_PROC_FS) +#if defined(CONFIG_SND_OSSEMUL) && defined(CONFIG_SND_PROC_FS) #define SNDRV_OSS_INFO_DEV_AUDIO 0 #define SNDRV_OSS_INFO_DEV_SYNTH 1 @@ -197,6 +210,6 @@ static inline int snd_info_check_reserved_words(const char *str) { return 1; } int snd_oss_info_register(int dev, int num, char *string); #define snd_oss_info_unregister(dev, num) snd_oss_info_register(dev, num, NULL) -#endif /* CONFIG_SND_OSSEMUL && CONFIG_PROC_FS */ +#endif /* CONFIG_SND_OSSEMUL && CONFIG_SND_PROC_FS */ #endif /* __SOUND_INFO_H */ |