[alsa-devel] Null suspend/resume functions

Mark Brown broonie at opensource.wolfsonmicro.com
Wed Nov 18 14:41:12 CET 2009

On Tue, Nov 17, 2009 at 11:14:04PM +0100, Rafael J. Wysocki wrote:

> In fact, it's not mandatory for bus types, not for drivers.  IMO bus types
> really have to know how to suspend a device and how to resume it,
> otherwise the core framework won't be useful anyway.  What the bus type does
> about drivers not implementing ->runtime_suspend() or ->runtime_resume(), it's
> up to the bus type.  That's even documented IIRC.

OK, thanks - I hadn't realised that these were being called directly
from the bus type code rather than by the core.

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