mirror of
https://github.com/alsa-project/alsa-lib.git
synced 2025-11-03 09:01:52 -05:00
56 lines
2.3 KiB
C
56 lines
2.3 KiB
C
/****************************************************************************
|
|
* *
|
|
* control.h *
|
|
* Control Interface *
|
|
* *
|
|
****************************************************************************/
|
|
|
|
typedef struct snd_ctl snd_ctl_t;
|
|
|
|
typedef struct snd_ctl_callbacks {
|
|
void *private_data; /* may be used by an application */
|
|
void (*rebuild) (snd_ctl_t *handle, void *private_data);
|
|
void (*value) (snd_ctl_t *handle, void *private_data, snd_control_id_t * id);
|
|
void (*change) (snd_ctl_t *handle, void *private_data, snd_control_id_t * id);
|
|
void (*add) (snd_ctl_t *handle, void *private_data, snd_control_id_t * id);
|
|
void (*remove) (snd_ctl_t *handle, void *private_data, snd_control_id_t * id);
|
|
void *reserved[58]; /* reserved for the future use - must be NULL!!! */
|
|
} snd_ctl_callbacks_t;
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
int snd_card_load(int card);
|
|
int snd_cards(void);
|
|
unsigned int snd_cards_mask(void);
|
|
int snd_card_name(const char *name);
|
|
int snd_card_get_name(int card, char **name);
|
|
int snd_card_get_longname(int card, char **name);
|
|
|
|
int snd_defaults_card(void);
|
|
int snd_defaults_mixer_card(void);
|
|
int snd_defaults_pcm_card(void);
|
|
int snd_defaults_pcm_device(void);
|
|
int snd_defaults_rawmidi_card(void);
|
|
int snd_defaults_rawmidi_device(void);
|
|
|
|
int snd_ctl_open(snd_ctl_t **handle, int card);
|
|
int snd_ctl_close(snd_ctl_t *handle);
|
|
int snd_ctl_file_descriptor(snd_ctl_t *handle);
|
|
int snd_ctl_hw_info(snd_ctl_t *handle, struct snd_ctl_hw_info *info);
|
|
int snd_ctl_clist(snd_ctl_t *handle, snd_control_list_t * list);
|
|
int snd_ctl_cinfo(snd_ctl_t *handle, snd_control_info_t * sw);
|
|
int snd_ctl_cread(snd_ctl_t *handle, snd_control_t * control);
|
|
int snd_ctl_cwrite(snd_ctl_t *handle, snd_control_t * control);
|
|
int snd_ctl_hwdep_info(snd_ctl_t *handle, snd_hwdep_info_t * info);
|
|
int snd_ctl_pcm_info(snd_ctl_t *handle, snd_pcm_info_t * info);
|
|
int snd_ctl_pcm_prefer_subdevice(snd_ctl_t *handle, int subdev);
|
|
int snd_ctl_rawmidi_info(snd_ctl_t *handle, snd_rawmidi_info_t * info);
|
|
|
|
int snd_ctl_read(snd_ctl_t *handle, snd_ctl_callbacks_t * callbacks);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|