NAME¶

snd_ctl_add_slave - Add a virtual slave control

SYNOPSIS¶

int snd_ctl_add_slave(struct snd_kcontrol * master, struct snd_kcontrol * slave);

ARGUMENTS¶

master

slave

DESCRIPTION¶

Add a virtual slave control to the given master element created via snd_ctl_create_virtual_master beforehand. Returns zero if successful or a negative error code.

All slaves must be the same type (returning the same information via info callback). The function doesn´t check it, so it´s your responsibility.

Also, some additional limitations: at most two channels, logarithmic volume control (dB level) thus no linear volume, master can only attenuate the volume without gain

COPYRIGHT¶