Hi Jorges, On Thursday 07 February 2008, [EMAIL PROTECTED] wrote: > I have a Dell XPS m1330 that comes withis webcam. It works ok (mplayer, > skype-2.0.0.27), even if there is an error message in dmesg output (see > below, there's also the lsusb -v output). What's the meaning of this > error? Is there any functionality missing because of it?
The "uvcvideo: Failed to query (135) UVC control 1 (unit 0) : -110 (exp. 26)." message can be safely ignored. A mandatory request isn't implemented by the camera, but the UVC driver can work around the problem. > A bit out of topic: Is it possible to get "raw" output from this > camera? With what program? Do i have to make one specifically? By "raw" > I mean no color-processing, no gamma correction, no compression, etc. > Please excuse me if this question is ridiculous, I work on image > processing algorithms but have no idea about the UVC devices. Real raw output is device specific. You can get close to it by using an uncompressed format (YUV as opposed to MJPEG) and disabling auto exposure, auto white balance, ... Disabling color processing might be possible but only the chipset vendor can tell you how. Logitech published information about raw Bayer mode for some models some months ago on this list (you might be able to find the info on quickcamteam.net). Best regards, Laurent Pinchart _______________________________________________ Linux-uvc-devel mailing list [email protected] https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
