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37 lines
1.7 KiB
C
37 lines
1.7 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_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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