[alsa-devel] ASoC how to modify audio IC register values

Jarkko Nikula jhnikula at gmail.com
Thu Sep 23 07:44:27 CEST 2010

On Wed, 22 Sep 2010 16:55:33 -0400
Philip Balister <philip at balister.org> wrote:

> On 09/21/2010 04:21 PM, Almohanad Fayez wrote:
> > I'm running the 2.6.28 Linux kernel.  can anyone share some advice ???
> I'm interested in the solution also. I'm familiar with the work Al is 
> doing and have never found a satisfactory solution. The basic problem is 
> we are receiving samples of digitized RF containing an FM radio signal. 
> Due to contraints on the sample rates of the RF hardware we end up with 
> audio at odd rates (such as 32K). If you let libsamplerate fix the rate, 
> we us more processor than we have available.
> If anyone knows if the Beagle hardware can support different sample 
> rates and how to add support to the ALSA driver, I'd love to hear 
> suggestions.
TWL4030 codec on Beagle supports more rates but they come in 2.6.29. I
think it should work on 2.6.28 too if you apply the commit

But better option is to upgrade the kernel. These days the Beagle is
well supported in Vanilla too.


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