mirror of
https://github.com/alsa-project/alsa-lib.git
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19811bb9b4
the handle in use. This should be more type-safe as the compiler will perform checking on type now.
68 lines
3.5 KiB
C
68 lines
3.5 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_callbacks {
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void *private_data; /* should be used by an application */
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void (*rebuild) (void *private_data);
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void (*xswitch) (void *private_data, int cmd, int iface, snd_switch_list_item_t *item);
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void *reserved[29]; /* 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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typedef struct snd_ctl snd_ctl_t;
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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_defaults_card(void);
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int snd_defaults_mixer_card(void);
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int snd_defaults_mixer_device(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_switch_list(snd_ctl_t *handle, snd_switch_list_t * list);
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int snd_ctl_switch_read(snd_ctl_t *handle, snd_switch_t * sw);
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int snd_ctl_switch_write(snd_ctl_t *handle, snd_switch_t * sw);
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int snd_ctl_pcm_info(snd_ctl_t *handle, int dev, snd_pcm_info_t * info);
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int snd_ctl_pcm_playback_info(snd_ctl_t *handle, int dev, snd_pcm_playback_info_t * info);
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int snd_ctl_pcm_record_info(snd_ctl_t *handle, int dev, snd_pcm_record_info_t * info);
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int snd_ctl_pcm_playback_switch_list(snd_ctl_t *handle, int dev, snd_switch_list_t * list);
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int snd_ctl_pcm_playback_switch_read(snd_ctl_t *handle, int dev, snd_switch_t * sw);
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int snd_ctl_pcm_playback_switch_write(snd_ctl_t *handle, int dev, snd_switch_t * sw);
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int snd_ctl_pcm_record_switch_list(snd_ctl_t *handle, int dev, snd_switch_list_t * list);
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int snd_ctl_pcm_record_switch_read(snd_ctl_t *handle, int dev, snd_switch_t * sw);
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int snd_ctl_pcm_record_switch_write(snd_ctl_t *handle, int dev, snd_switch_t * sw);
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int snd_ctl_mixer_info(snd_ctl_t *handle, int dev, snd_mixer_info_t * info);
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int snd_ctl_mixer_switch_list(snd_ctl_t *handle, int dev, snd_switch_list_t *list);
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int snd_ctl_mixer_switch_read(snd_ctl_t *handle, int dev, snd_switch_t * sw);
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int snd_ctl_mixer_switch_write(snd_ctl_t *handle, int dev, snd_switch_t * sw);
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int snd_ctl_rawmidi_info(snd_ctl_t *handle, int dev, snd_rawmidi_info_t * info);
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int snd_ctl_rawmidi_output_info(snd_ctl_t *handle, int dev, snd_rawmidi_output_info_t * info);
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int snd_ctl_rawmidi_input_info(snd_ctl_t *handle, int dev, snd_rawmidi_input_info_t * info);
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int snd_ctl_rawmidi_output_switch_list(snd_ctl_t *handle, int dev, snd_switch_list_t *list);
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int snd_ctl_rawmidi_output_switch_read(snd_ctl_t *handle, int dev, snd_switch_t * sw);
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int snd_ctl_rawmidi_output_switch_write(snd_ctl_t *handle, int dev, snd_switch_t * sw);
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int snd_ctl_rawmidi_input_switch_list(snd_ctl_t *handle, int dev, snd_switch_list_t *list);
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int snd_ctl_rawmidi_input_switch_read(snd_ctl_t *handle, int dev, snd_switch_t * sw);
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int snd_ctl_rawmidi_input_switch_write(snd_ctl_t *handle, int dev, snd_switch_t * sw);
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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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