centos man page for snd_power_wait

SND_POWER_WAIT(9)					  Management of Cards and Device					 SND_POWER_WAIT(9)

NAME
       snd_power_wait - wait until the power-state is changed.

SYNOPSIS
       int snd_power_wait(struct snd_card * card, unsigned int power_state);

ARGUMENTS
       card
	   soundcard structure

       power_state
	   expected power state

DESCRIPTION
       Waits until the power-state is changed.

RETURN
       Zero if successful, or a negative error code.

NOTE
       the power lock must be active before call.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014							 SND_POWER_WAIT(9)