[alsa-devel] A plea for help on mixer support for Fast Track Ultra (8R)

Grant Diffey gdiffey at gmail.com
Fri May 20 18:25:08 CEST 2011

So the controls are created as expected and do something but not everything
I expect.

So my test setup here.
is inputs on analog 1, 2 and 5  if I mute all the controls. that works.

but in no setting of the controls can I get channel 5 to output to 1 and 2.
setting Ain5 -Out1 and Ain5-out2 does this on the earlier patch.

so even with all the controls at 100% (this should pass every input to every
output simultaneously I can't hear the input on ch5 on the headphones.

I'm going to have to look at this tomorrow it's 2:30am here. night guys


On Sat, May 21, 2011 at 1:54 AM, Daniel Mack <zonque at gmail.com> wrote:

> On Fri, May 20, 2011 at 5:43 PM, Grant Diffey <gdiffey at gmail.com> wrote:
> > So something is very whacky with the control map. not sure how to debug
> > this.
> >
> > The original patch felix posted works as I expect this one doesn't where
> > should I start debugging this?
> The first thing would be to define what you refer to with the term "wacky"
> :)
> Does it fail creating the controls? Don't the control do what they're
> supposed to? Is the behaviour deterministic?
> An easy way to track things in the driver is to add
> printk(KERN_WARNING ...); lines in the driver, then compile, unloaded
> and load the module again. Then find these lines in your syslog.
> Daniel

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