[alsa-devel] question on snd_power_change_state()

Takashi Iwai tiwai at suse.de
Fri Mar 11 13:15:28 CET 2011


At Fri, 11 Mar 2011 13:12:17 +0100,
Oliver Neukum wrote:
> 
> Hi,
> 
> will calling snd_power_change_state() reset all mixer settings?

No, it's a simple inline function defined in include/sound/core.h.

static inline void snd_power_change_state(struct snd_card *card, unsigned int state)
{
	card->power_state = state;
	wake_up(&card->power_sleep);
}

It's present mostly for historical reasons.


Takashi


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