YESSS !!! Thank you Paulo, I tried that and I could get image in guvcview :D
I guess I have to add this to /etc/modprobe.d/somewhere_in_slackware but I guess I shouldn't have too much trouble with that. Now I wonder if there is a way to use higher resolutions or is it a limitation of usb or driver or you_name_it ? All I can use right now is 176x144. when trying to go higher (320x240) I get the previous errors saying there is no space left in device. Anyway, thanks again ! Claudio > Claudio hi, > > 2010/11/24 <malef...@malefico3d.org>: >> Hi Laurent, >> >> http://www.pasteall.org/17101 is the output of lsusb -v, line 176 >> starts >> blurb about webcam. >> >>> Have you tried the FIX_BANDWIDTH quirk ? >> >> No, where is that ? kernel source ? >> > > just do: > > rmmod uvcvideo > modprobe uvcvideo quirks=128 > > This will make the driver calculate the needed usb bandwidth for your > camera, some devices just request the maximum value and this may cause > problems if other devices are connected to the same controller. > If I'm not mistaken this will only work for uncompressed streams (yuv). > > Regards, > Paulo > > >> Thanks for the feedback ! >> >> Claudio >> >>> Hi Claudio, >>> >>> On Wednesday 24 November 2010 14:40:47 malef...@malefico3d.org wrote: >>>> > This is a bit strange, do you have more than one video device ? >>>> > What do you have now as /dev/video0 ? >>>> >>>> No, this happened after I configured ALSA so the audio capture device >>>> integrated in the camera, will be taken as the second soundcard (I >>>> already >>>> have one that I prefer to be the default soundcard). I'm not saying it >>>> is >>>> related but after doing this, the camera started to be /dev/video1. >>>> Nothing really changed anyway, webcam kept on same way. >>>> >>>> >> Is there any way to detect and fix the bandwidth problem ? >>>> > >>>> > check this thread: >>>> > http://www.mail-archive.com/linux-usb-us...@lists.sourceforge.net/msg1483 >>>> > 8.html >>>> >>>> Thanks I will look into it. I presume I have to rebuild the kernel in >>>> order to get those "bandwidth load reports" I see in this thread, >>>> right >>>> ? >>>> >>>> The other thing is once I detected the problem is the bandwidth, what >>>> should I do ? >>> >>> Have you tried the FIX_BANDWIDTH quirk ? >>> >>>> how do I add a second USB controller to my computer ? >>>> >>>> I wonder if ANYONE here has tried this camera and make it work... >>> >>> Could you please send me the USB descriptors for your camera (lsusb -v) >>> ? >>> >>> -- >>> Regards, >>> >>> Laurent Pinchart >>> >> >> >> _______________________________________________ >> Linux-uvc-devel mailing list >> Linux-uvc-devel@lists.berlios.de >> https://lists.berlios.de/mailman/listinfo/linux-uvc-devel >> > _______________________________________________ Linux-uvc-devel mailing list Linux-uvc-devel@lists.berlios.de https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
