[alsa-devel] Broken outmixer_event function in wm8400/wm8990/wm8991

Charles Keepax ckeepax at opensource.wolfsonmicro.com
Tue May 13 16:22:22 CEST 2014

On Tue, May 13, 2014 at 04:11:03PM +0200, Lars-Peter Clausen wrote:
> On 05/13/2014 03:53 PM, Charles Keepax wrote:
>> On Mon, May 12, 2014 at 09:47:34PM +0100, Mark Brown wrote:
>>> On Mon, May 12, 2014 at 10:19:26AM +0200, Lars-Peter Clausen wrote:
>> I would be inclined to go with the custom put/get method as well,
>> but it leaves a question of what to do if the user sets an
>> invalid value. Refusing to set the control feels nicer, but adds
>> an ordering limitation on setting the controls. Updating the
>> conflicting control is also possible, but might be a little
>> surprising?
> The event PRE_REG event is generated as soon as the control is changed, 
> not when the path powers up. So there is no difference to a custom put 
> handler in this regard.

Right, thanks, in that case yeah I can see no reason not to
switch to a custom put. I will shove it on the todo list.


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