Sorry for another mail. It works with quirks 128 and uncompressed YUV format. Is there any way how to use compressed MJPEG? Should I try compile never uvcvideo driver?
Dne 12. dubna 2011 18:55 Zdeněk Materna <zdenek.mate...@gmail.com> napsal(a): > Hello again, > > now I discovered, that it's possible to change module parameters even > if they are compiled in kernel... So I did: > > echo 2 > /sys/module/uvcvideo/parameters/quirks > > And v4l example now ends like this: > > VIDIOC_S_FMT error 28, No space left on device > > Error "No space left" indicates problem with USB bandwidth? How can I > solve it? I tried to change resolution in v4l example from 640x480 to > 160x120 but it didn't help. > > Dne 12. dubna 2011 18:00 Zdeněk Materna <zdenek.mate...@gmail.com> napsal(a): >> Hello, >> >> I have problem with UVC webcam. It's Genius Facecam 1000. I would like >> to use it with mjpg-streamer. Before this model, I had Facecam 1320, >> but it wasn't mjpeg capable, so mjpg-streamer had to do jpeg >> compresion and it was quite slow. Facecam 1000 can provide mjpg stream >> by itself and it works great on x86, but it doesn't work on ARM. To >> exclude problem in mjpg-streamer I compiled v4l capture example >> (http://v4l2spec.bytesex.org/spec-single/v4l2.html#CAPTURE-EXAMPLE) >> and it's same - works on x86 a not on ARM. >> >> On embedded platform I'm using AT91SAM9260 (Olimex kit L9260) which >> has USB2.0, but only full-speed - is it problem? I don't think so - >> previous webcam works great. >> >> On x86 I use kernel 2.6.35 and glibc. On ARM there is kernel >> 2.6.33.7.2-rt30 and uClibc. >> >> v4l example fails with this error: VIDIOC_STREAMON error 5, Input/output >> error >> >> webcam is detected correctly: >> [ 2042.100000] usb 1-1: new full speed USB device using at91_ohci and >> address 3 >> [ 2042.290000] usb 1-1: New USB device found, idVendor=0458, idProduct=707e >> [ 2042.290000] usb 1-1: New USB device strings: Mfr=1, Product=2, >> SerialNumber=0 >> [ 2042.310000] usb 1-1: Product: FaceCam 1000 >> [ 2042.320000] usb 1-1: Manufacturer: KYE SYSTEMS CORP. >> [ 2042.400000] uvcvideo: Found UVC 1.00 device FaceCam 1000 (0458:707e) >> [ 2042.460000] input: FaceCam 1000 as >> /devices/platform/at91_ohci/usb1/1-1/1-1:1.0/input/input1 >> >> Thanks for any advice! >> >> Best regards >> Zdenek Materna >> > _______________________________________________ Linux-uvc-devel mailing list Linux-uvc-devel@lists.berlios.de https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
