SND_CTL_ADD_SLAVE_UN(9) Control/Mixer API SND_CTL_ADD_SLAVE_UN(9)
NAME
snd_ctl_add_slave_uncached - Add a virtual slave control
SYNOPSIS
int snd_ctl_add_slave_uncached(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. Unlike snd_ctl_add_slave, the element added via this function is supposed to have volatile
values, and get callback is called at each time quried from the master.
When the control peeks the hardware values directly and the value can be changed by other means than the put callback of the element, this
function should be used to keep the value always up-to-date.
COPYRIGHT
Kernel Hackers Manual 2.6. July 2010 SND_CTL_ADD_SLAVE_UN(9)
