Genius webcam problem on ARM
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: [ 2042.10] usb 1-1: new full speed USB device using at91_ohci and address 3 [ 2042.29] usb 1-1: New USB device found, idVendor=0458, idProduct=707e [ 2042.29] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 2042.31] usb 1-1: Product: FaceCam 1000 [ 2042.32] usb 1-1: Manufacturer: KYE SYSTEMS CORP. [ 2042.40] uvcvideo: Found UVC 1.00 device FaceCam 1000 (0458:707e) [ 2042.46] 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 -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: Genius webcam problem on ARM
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 18:37 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: [ 2042.10] usb 1-1: new full speed USB device using at91_ohci and address 3 [ 2042.29] usb 1-1: New USB device found, idVendor=0458, idProduct=707e [ 2042.29] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 2042.31] usb 1-1: Product: FaceCam 1000 [ 2042.32] usb 1-1: Manufacturer: KYE SYSTEMS CORP. [ 2042.40] uvcvideo: Found UVC 1.00 device FaceCam 1000 (0458:707e) [ 2042.46] 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 -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: Genius webcam problem on ARM
Hello, I'm 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 18:37 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: [ 2042.10] usb 1-1: new full speed USB device using at91_ohci and address 3 [ 2042.29] usb 1-1: New USB device found, idVendor=0458, idProduct=707e [ 2042.29] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 2042.31] usb 1-1: Product: FaceCam 1000 [ 2042.32] usb 1-1: Manufacturer: KYE SYSTEMS CORP. [ 2042.40] uvcvideo: Found UVC 1.00 device FaceCam 1000 (0458:707e) [ 2042.46] 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 -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
