Hi Laurent and UVC developers, I'm starting to give a close look at luvcview failures when using Xacti cameras with UVC. I'm new to UVC so any help would be greatly appreciated. The problem was initially described by Lars Täuber with the Sanyo HD 1000: http://lists.berlios.de/pipermail/linux-uvc-devel/2007-September/002145.html To summarize: luvcview works on the first execute-quit sequence but fails if you try to execute luvcview again. I tried plugging Lars Täuber's code snippet into uvc_driver.c but that had no visible effect.
I'm experiencing the same problem with a Xacti C6. I also have access to Xacti C4, HD 1000, and HD 2 cameras to test on other models. Device numbers: Xacti HD 1000: 0474:0238 Xacti C6: 0474:0241 Below are logs obtained with SnoopyPro-022 while starting AMCap video capture on Windows XP ( http://noeld.com/programs.asp?cat=video ) These logs track the following sequence: - Start Amcap - Capture 2 to 3 seconds of 320x240 video - Quit Amcap - Wait a few seconds - Start Amcap - Capture 2 to 3 seconds of 320x240 video - Quit Amcap Log from "video device": Snoopy binary log: http://www.ailab.ch/~tnetter/USBLog12.usblog Text version: http://www.ailab.ch/~tnetter/log12.txt.gz Simultaneous log from "composite device": Snoopy binary log: http://www.ailab.ch/~tnetter/USBLog13.usblog Text version: http://www.ailab.ch/~tnetter/log13.txt.gz Here's what happens in Ubuntu 7.10, linux 2.6.22-14-generic, uvcvideo-r104, luvcview-20070512 (tried both from SVN and from deb package). First attempt works: sudo ./luvcview luvcview version 0.2.1 Video driver: x11 A window manager is available video /dev/video0 Stop asked Clean Up done Quit Second attempt fails: sudo ./luvcview luvcview version 0.2.1 Video driver: x11 A window manager is available video /dev/video0 Unable to set format: 5. Init v4L2 failed !! exit fatal If I unplug and replug the camera into the USB port then luvcview works again for one more attempt. Any help / hints are welcome. -Thomas _______________________________________________ Linux-uvc-devel mailing list [email protected] https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
