2 Aug
2009
2 Aug
'09
1:49 p.m.
On Sat, Aug 01, 2009 at 08:04:56AM -0700, John Bonesio wrote:
When I umuted the PCM mixer setting, this printk text did not appear, yet when I read the mixer register setting for the headphone, it was set back to mute.
Like I said before, exactly which control are you adjusting here?
If there is code in software doing this, it's very subtle.
My money would be on the AC97 controller having problems; the quality of SoC AC97 controllers is variable. It certainly doesn't sound like a WM9712 issue; as I say I'd be very surprised if such an issue hadn't come up before given how widely deployed the part is.