snd_ctl_add_slave man page on Scientific

snd_ctl_add_slave man page on Scientific

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SND_CTL_ADD_SLAVE(9)	       Control/Mixer API	  SND_CTL_ADD_SLAVE(9)

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
	   vmaster element

       slave
	   slave element to add

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
Kernel Hackers Manual 2.6.	 November 2013		  SND_CTL_ADD_SLAVE(9)

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