snd_power_wait (9) Linux Manual Page
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.