[pvrusb2] Kernel 2.6.22 and firmware loading on a NAS

[Reinhold Kainhofer]

Hi all,
Thanks for all your suggestions. I've now made it work.

On 2012-03-30 18:47, Reinhold Kainhofer wrote:
> I have successfully cross-compiled the standalone pvrusb2 module for the
> 2.6.22 kernel[1] used in my D-Link DNS-325 NAS, because I intend to use
> the WinTV HVR-1900 as a HDD video recorder (recording from the analog
> output of my settop box).
>
> Loading the modules works fine (v4l modules from the 2.6.22 Kernel plus
> the pvrusb2 module), but apparently loading the firmware fails, although
> I placed the correct file in /lib/firmware/

Actually, it turned out that D-Link had completely removed the firmware 
loading from their hotplug scripts. In particular, I had
to create a proper /etc/hotplug/firmware.agent to make it work. It then 
turned out that sysfs was not mounted, so I had to add sysfs mounting to 
that script too. After that, things work just fine now.

(This work was further complicated by the fact that while I had write 
access to the root partition, I only had shell access to a chrooted 
environment, so things like /proc/kcore were not available).

So, this is just to confirm that my HVR-1900 is working fine on my 
D-Link DNS-325 NAS on kernel 2.6.22.

Cheers,
Reinhold

-- 
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Reinhold Kainhofer, reinhold at kainhofer.com, http://reinhold.kainhofer.com/
  * Financial&  Actuarial Math., Vienna Univ. of Technology, Austria
  * http://www.fam.tuwien.ac.at/, DVR: 0005886
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