Ok, just to be sure, I have others capture boards like Silan SC8113, that's only on newer kernels? If so I'll backport it. 2014-10-29 17:08 GMT-02:00 Mauro Carvalho Chehab <m.chehab@xxxxxxxxxxx>: > 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 >> -- Regards, Coutinho www.phiinnovations.com -- 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
