Em Wed, 29 Oct 2014 16:34:09 -0200 Rafael Coutinho <rafael.coutinho@xxxxxxxxxxxxxxxxxx> escreveu: > Hi all, > > I'm having trouble to make an SAA7115 (Actually it's the generic > GM7113 version) video capture board to work on a beagle board running > Android (4.0.3). > For some reason I cannot capture any image, it always output a green image file. > The kernel is Linux-3.2.0 Support for GM7113 were added only on a recent version. So, you need to get a newer driver. So, you'll need to either upgrade the Kernel, use either Linux backports or media-build to get a newer driver set or do the manual work of backporting saa7115 and the bridge driver changes for gm7113 for it to work. Regards, Mauro > > My current approach is the simplest I have found so far, to avoid any > issues with other sw layers. I'm forcing a 'dd' from the /dev/video > device. > > dd if=/dev/video0 of=ImageOut.raw bs=10065748 count=1 > > And then I open the raw image file converting it on an image editor. > > In my ubuntu PC (kernel 3.13.0) it works fine. however on the Beagle > Bone with android it fails to get an image. > > I have now tried with a Linux (angstron) on beagle bone with 3.8 > kernel and this time is even worse, the 'dd' command does not result > on any byte written on the output file. > > The v4l2-ctl works fine on the 3 environments. I can even set values > as standard, input etc... > > I have attached the dmesg of the environments here: > > * Android - dmesg http://pastebin.com/AFdB9N9c > > * Linux Angstron - dmesg http://pastebin.com/s3S3iCph > * Linux Angstron - lsmod http://pastebin.com/vh89TBKQ > > * Desktop PC - dmesg http://pastebin.com/HXzHwnUJ > > I have one restriction on the kernel of android due the HAL drivers > for BBB. So changing kernel is not a choice. > > Anyone could give me some tips on where to look for other issues or debug it? > > Thanks in advance > -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
