Nokia N900: microphone mixers

[Pavel Machek]

On Fri 2017-01-20 15:04:04, Pali Rohár wrote:
> On Friday 20 January 2017 15:00:47 Pavel Machek wrote:
> > On Fri 2017-01-20 14:38:30, Pali Rohár wrote:
> > > On Friday 20 January 2017 14:31:59 Pavel Machek wrote:
> > > > Hi!
> > > > 
> > > > Do you have any idea how to control the microphone? I'd like the audio
> > > > source to be microphone on headset (not the built in one). So I run
> > > > alsamixer, set everything in "capture" section to zero... and I still
> > > > get the audio from the internal microphone :-(.
> > > > 
> > > > Tested with arecord | aplay.
> > > > 
> > > > Any ideas?
> > > 
> > > Hi! Try to set Jack Function to Headset or enable b HS Mic.
> > 
> > I can't find "b HS Mic" function. I can set "Input Select" to "ADC",
> > and ten internal microphone is off, but I can't get any audio on
> > input. I tried with "Jack function" both "headset" and "headphone".
> > 
> > Do I need to enable microphone bias voltage somewhere?
> 
> When you set Jack function to headset it automatically enable HS Mic
> control which controls mic bias.
> 
> If Jack function in headset mode does not work, then there is bug. Try
> older versions of kernel...

Would you know which mainline kernel version is "known good"?

									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 181 bytes
Desc: Digital signature
URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20170120/a099e3fe/attachment.sig>