[alsa-devel] Issues with HDSPM

[Adrian Knoth]

On 06/07/2011 10:02 AM, Jörn Nettingsmeier wrote:

>> the HDSPM driver seems to be broken in the current ALSA release.
>> We're using CentOS 5 with 2.6.33.9-rt31.64.el5rt and ALSA 1.0.24
>> compiled from source, the card is a PCIe Hammerfall DSP MADI (rev d2).
>> As already mentioned in [1], the card operates in master mode, but the
>> system clock mode can't be set to anything higher than 48kHz.
> 
> confirmed with 2.6.39.
> this is a regression iirc, i think it used to work in 2.6.37...

Very likely, the code between 2.6.38 and 2.6.39 changed more or less
completely.

> adi, i can test patches if you want, or you can have ssh access if it
> helps.

ssh would be good. Together with Andre, it might be worth checking
on-site that the resulting sample rate is indeed correctly reported by
external equipment.

Andre, JFTR: don't use hdspmixer from the tarball, go directly for the
git repo (alsa-tools) until 1.0.24.2 is released.


Cheers