Hi Ben, On Wednesday 31 October 2007 15:51, Ben Morris wrote: > On Tuesday 30 October 2007 22:01:58 you wrote: > > Hi Ben, > > > > On Sunday 28 October 2007, Ben Morris wrote: > > > I installed linux-uvc, SVN version from a Gentoo ebuild. > > > There was a post-install note saying to get involved here if a device > > > doesn't work. I hope I am not spamming the wrong list. :-) > > > > This is the right list. Let's see if your post should be considered as > > spam :-) > > > > > I have an HP dv9574 laptop with a built-in webcam. What sort of camera > > > it actually is is not obvious, but I believe this lsusb entry is it: > > > Bus 002 Device 004: ID 064e:a101 Suyin Corp. > > > > > > Here is dmesg's output on loading the uvcvideo module: > > > uvcvideo: Found UVC 1.00 device HP Webcam (064e:a101) > > > usbcore: registered new interface driver uvcvideo > > > USB Video Class driver (v0.1.0) > > > > Looks great so far. > > > > > The dev entry is created but does not seem to work: > > > # cat /dev/video0 > > > cat: /dev/video0: No such device > > > > That's perfectly normal. The Linux UVC driver doesn't support read() > > (yet). Only softwares using the mmap() streaming method will work. > > > > > The file does exist, by the way. > > > > > > Running xawtv causes the blue LED next to the camera to light briefly, > > > but does not produce a picture. > > > > xawtv has known bugs. Could you please try luvcview ? As your camera > > doesn't support MJPEG, you should run it with > > > > luvcview -f yuv
^^^^^^^^^^^^^^^^^^^^^ *HINT*HINT*HINT*HINT* > > > I would be glad to assist in any way I can to help add support for this > > > device. I can't code but I will do any tests you suggest. > > > > If luvcview works (and it probably will), Ekiga should work as well. aMsn > > and mplayer should too if you use recent enough versions. > > > > Best regards, > > > > Laurent Pinchart > > Thanks. I compiled luvcview using the ebuild from > http://lists.berlios.de/pipermail/linux-uvc-devel/2006-February/000255.html > > $ luvcview > luvcview version 0.2.1 > Video driver: x11 > A window manager is available > video /dev/video0 > Unable to set format: 22. > Init v4L2 failed !! exit fatal Refer to the above hint :-) > What parameters would I use with mplayer to test the cam? I have Gentoo's > mplayer-1.0_rc1_p20070824. Try something like mplayer tv:// -tv driver=v4l2:fps=25:width=640:height=480 p20070824 should be recent enough, but if you get error messages such as v4l2: ioctl dequeue buffer failed: Invalid argument, idx = 0 you should try to upgrade to a later version. > BTW, I know that the camera is working as I tested it before wiping out the > Vista install this laptop came with (no refunds from HP). :-( Best regards, Laurent Pinchart PS: Please reply to the list _______________________________________________ Linux-uvc-devel mailing list [email protected] https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
