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