[alsa-devel] [PATCH] Initial support of the Mitac 8252D (based on ALC883)

[Andy Shevchenko]

Hi Andy Shevchenko!

 On Thu, Dec 06, 2007 at 11:46:12AM +0200, Andy Shevchenko wrote next:

> The attached patch adds initial support of the Mitac 8252D
> (http://www.mitac-mtc.com.tw/English/products/8252Dspec.htm).
> 
> Working:
>  - Front speakers (volume + mute)
>  - Center/LFE speakers (volume + mute)
>  - HP out (with Front Volume)
>  - HP individual mute switch
>  - HP Jack sense
>  - Front Mic and its volume
> 
> Not tested:
>  - external mic and its volume
> 
> Not working while now:
>  - Mic Jack sense
> 
> Questionable:
>  - is Mic have Jack sense?
>  - one or two Mic volume controls?
>  - CD/Line-in: presense in the mixer

Additional info here.

All jacks are connected to the one Jack sense input pin via different
impedances (1:2:4 scale). However p.50 of the datasheet says 'The ALC883
does not support hardware impedance detect.'
Due to above the Mic and S/PDIF sense couldn't be evaluated.

Also, the laptop has S/PDIF jack. And specifications are included the 5.1
outputs.

-- 
With best regards,
Andy Shevchenko.      mailto: andy at smile.org.ua