[alsa-devel] Restore state around suspend/resume

Hi,

Currently, suspending the computer via pm-suspend (as done from HAL), causes the ALSA state to be stored and restored via alsactl. Here's what the hook looks like:

http://cgit.freedesktop.org/pm-utils/tree/pm/sleep.d/65alsa

Is this still necessary on recent kernels? Is there a list of drivers which properly maintain state across suspend/resume? We're trying to cut down on the amount of work done in userspace which slows down suspend cycles.

Thanks.

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