Hi Bruce, On Wednesday 06 May 2009 01:24:25 bruce m beach wrote: > Hello > > I have a Suyin crystal eye webcam that lsusb give as > > Bus 004 Device 002: ID 064e:a103 Suyin Corp > > that I have been trying to make work for the last week > to no avail. From what I've read this device > should be no problem. What I am getting is as follows: > > Luvcview > -------- > 1) sh-4.0# luvcview -f yuv > 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
Your device only supports MJPEG so this is expected. > 2) sh-4.0# luvcview > luvcview version 0.2.1 > Video driver: x11 > A window manager is available > video /dev/video0 > The green light is on and I have a green screen. This probably means that the driver doesn't receive enough data to fill a video frame. Are you running the latest driver ? There is a known bug in older versions that cause frames to be incorrectly dropped under specific circumstances. > The application is alive until Play with some of the buttons and I messages > like > > ioctl querycontrol error 22 > Set Sharpness down error > ioctl querycontrol error 22 > Set Sharpness down error > and then it dies. I have to use kill -9 to terminate it. > > Xawtv > ----- > sh-4.0# xawtv -v > This is xawtv-3.95, running on Linux/i686 (2.6.29.2) > /dev/video0 [v4l2]: no overlay support > v4l-conf had some trouble, trying to continue anyway > Warning: Cannot convert string "-*-ledfixed-medium-r-*--39-*- > ..... > ioctl: VIDIOC_G_STD(std=0xbffca810b7d4e000 > [NTSC_M_JP,?,?,SECAM_G,SECAM_K,SECAM_L,?ATSC_8_VSB,ATSC_16_VSB,(null),(null >),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(nul >l),(null),(null),(null),(null),(null),(null),(null),(null),(null)]): Invalid > argumen > > when I click "Grab image (ppm) or "Grab Image (jpeg)" I get: > > no way to get: 384x288 16 bit TrueColor (LE) > no way to get: 2048x1572 24 bit TrueColor (BE: rgb) > > Uvccapture > ---------- > sh-4.0# uvccapture -v > Using videodevice: /dev/video0 > Saving images to: snap.jpg > Image size: 320x240 > Taking snapshot every 0 seconds > Taking images using mmap > Resetting camera settings > ioctl querycontrol error 22 > Camera brightness level is -20 > Camera contrast level is 0 > Camera saturation level is 60 > ioctl querycontrol error 22 > Camera gain level is -1 > Saving image to: snap.jpg > > the green light goes on and off momentarily and gives me the picture > snap.jpg > but nothing (xv, gimp, mplayer) seems to understand what it is. The first > group of hex chars is > > 0d 7c 0c 7f 0d 7b 0f 7d > > uname -a gives > > Linux lapsystemx 2.6.29.2 #15 PREEMPT Sun May 3 08:09:40 PDT 2009 i686 > GNU/Linux > > dmesg gives: > > usb 4-1: Product: Crystal Eye webcam > usb 4-1: Manufacturer: SuYin > usb 4-1: SerialNumber: CN0314-SN30-OV032-VA-R01.00.00 > and > uvcvideo: Found UVC 1.00 device Crystal Eye webcam (064e:a103) > input: Crystal Eye webcam as /class/input/input6 > usb 4-1: adding 4-1:1.1 (config #1, interface 1) > > One thing that puzzles me is that in a letter to Linux-uvc-devel Tue Feb 17 > 19:26:30 CET 2009, thread titled: [Linux-uvc-devel] Device ID of my UVC > WebCam > Martin Koller gives lsusb -v as > > Bus 004 Device 002: ID 064e:a103 Suyin Corp > > which is the same as my webcam but the devices are not the same. Below I > includea diff of the two listings. That doesn't surprise me much, vendors often change devices without modifying the PID or the version. Best regards, Laurent Pinchart _______________________________________________ Linux-uvc-devel mailing list [email protected] https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
