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snd_ctl_mixer_switch_read()

Get a mixer switch setting

Synopsis:

#include <sys/asoundlib.h >

int snd_ctl_mixer_switch_read(
       snd_ctl_t *handle,
        int dev,
        snd_switch_t * sw )

handle: The handle for the control device. This must have been created by snd_ctl_open().
dev: The mixer device the switches apply to.
sw: A pointer to a snd_switch_t structure that snd_ctl_mixer_switch_read() fills with information about the switch.

libasound.so

The snd_ctl_mixer_switch_read() function reads the snd_switch_t structure for the switch identified by the name member of the structure.

You must initialize the name member before calling this function.

Zero on success, or a negative value if an error occurs.

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