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39 lines
1.9 KiB
C
39 lines
1.9 KiB
C
/****************************************************************************
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* *
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* mixer.h *
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* Mixer Interface *
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* *
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****************************************************************************/
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typedef struct snd_mixer_callbacks {
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void *private_data; /* should be used by application */
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void (*channel_was_changed) (void *private_data, int channel);
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void (*switch_was_changed) (void *private_data, int switchn);
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void *reserved[14]; /* reserved for future use - must be NULL!!! */
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} snd_mixer_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_mixer_open(void **handle, int card, int device);
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int snd_mixer_close(void *handle);
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int snd_mixer_file_descriptor(void *handle);
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int snd_mixer_channels(void *handle);
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int snd_mixer_info(void *handle, snd_mixer_info_t * info);
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int snd_mixer_exact_mode(void *handle, int enable);
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int snd_mixer_channel(void *handle, const char *channel_id);
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int snd_mixer_channel_info(void *handle, int channel, snd_mixer_channel_info_t * info);
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int snd_mixer_channel_read(void *handle, int channel, snd_mixer_channel_t * data);
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int snd_mixer_channel_write(void *handle, int channel, snd_mixer_channel_t * data);
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int snd_mixer_channel_record_read(void *handle, int channel, snd_mixer_channel_t * data);
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int snd_mixer_channel_record_write(void *handle, int channel, snd_mixer_channel_t * data);
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int snd_mixer_switches(void *handle);
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int snd_mixer_switch_read(void *handle, int switchn, snd_mixer_switch_t * data);
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int snd_mixer_switch_write(void *handle, int switchn, snd_mixer_switch_t * data);
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int snd_mixer_read(void *handle, snd_mixer_callbacks_t * callbacks);
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#ifdef __cplusplus
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}
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#endif
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