[pwc] Support for Philips SPC315NC in pwc driver

["Pierre D." <>]

Hi

I just received a webcam for my sister. It's a Philips SPC315NC, I
hoped it was going to be supported "out of the box" thanks to this
driver, but it's not the case (sadly).
I tried to add manually the USB ID (0471:032E) in the driver file and
"fake" another Webcam, for instance the SPC 900 NC because its name
and usbid look "like" mine, but it didn't work.
I'm getting the following error in syslog :
Jan 15 20:24:04 PChaut kernel: [17182629.580000] pwc: Failed to set
video mode  fps; return code = -32

Quite bad, I looked more closely at the code.
The type I set for the webcam (740) was making it use Kiara video
mode, I tried with Nala and Timon but it didn't work neither.
I looked at the Kiara video mode code, and it's likely failing here :
        /* Firmware bug: video endpoint is 5, but commands are sent to endpoint 
4 */
        ret = send_video_command(pdev->udev, 4 /* pdev->vendpoint */, buf, 12);
        if (ret < 0)
                return ret;

But well, I'm quite lost...

Any tip/help/information about an "official" support ?

Thanks


P.S : I've no experience in driver development so I can't fix it
myself and provide a patch, sorry :/
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