[Cbe-oss-dev] Some issues with a USB webcam on a PS3

[Andrea]

On 27/12/09 18:42, Geoff Levand wrote:
> On 12/26/2009 01:19 PM, Andrea wrote:
>> I've tried to use a Logitech QuickCam 4000 Pro USB on my PS3 running Fedora 12
>> It does not work and in /var/log/messages I can see some errors
> ...
>> Could it be a bug in the PS3 kernel?
>> Dec 26 21:11:18 localhost kernel: ps3-ohci-driver sb_06: USB HC takeover failed!  (BIOS/SMM bug)
> 
> I've never seen this message.
> 
> What kernel are you using?
> 
> -Geoff
> 

It is possible that this error was due to me messing with the module.
I was not able get this particular error again.

But still it remains that the v4l module pwc does not work on the PS3.
I've tried to enable as much logging as possible and compare the results on a x86 and the PS3.

I've trying to compare the differences and the first "reported" failure has to do with the function
usb_control_msg which returns -110.

It is very likely this is a bug in the module, but I would like to ask your opinion on the following:

1) if you have an idea about this return code

2) could you please give me a hint on what to look for. since it works very well on x86 it might be
due to some arch differences. IIRC the PS3 is a 64 bit machine and big-endian(?)

3) any idea how to add as much logging as possible on the USB layer.

thanks