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snd_ctl_add_slave_uncached
Langue: en
Version: October 2010 (fedora - 01/12/10)
Section: 9 (Appels noyau Linux)
NAME
snd_ctl_add_slave_uncached - Add a virtual slave controlSYNOPSIS
- 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.
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