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SND_CTL_MAKE_VIRTUAL(9)	       Control/Mixer API       SND_CTL_MAKE_VIRTUAL(9)

NAME
       snd_ctl_make_virtual_master - Create a virtual master control

SYNOPSIS
       struct snd_kcontrol * snd_ctl_make_virtual_master(char * name,
							 const unsigned int * tlv);

ARGUMENTS
       name
	   name string of the control element to create

       tlv
	   optional TLV int array for dB information

DESCRIPTION
       Creates a virtual matster control with the given name string. Returns
       the created control element, or NULL for errors (ENOMEM).

       After creating a vmaster element, you can add the slave controls via
       snd_ctl_add_slave or snd_ctl_add_slave_uncached.

       The optional argument tlv can be used to specify the TLV information
       for dB scale of the master control. It should be a single element with
       #SNDRV_CTL_TLVT_DB_SCALE, #SNDRV_CTL_TLV_DB_MINMAX or
       #SNDRV_CTL_TLVT_DB_MINMAX_MUTE type, and should be the max 0dB.

COPYRIGHT
Kernel Hackers Manual 2.6.	 November 2013	       SND_CTL_MAKE_VIRTUAL(9)

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