Re: [Linux-uvc-devel] Adjust Light Frequency Filter
Hi, Try guvcview with the option --control_only, this should work along side any other v4l2 app and you will be able to change the camera control settings. Best regards. Paulo 2010/3/31 Nikhil Benesch primate...@gmail.com: I have a Chicony 2.0 USB Camera (04f2:b008) that almost works perfectly. Right now, I can get it to work perfectly in both luvsview and Empathy. Unfortunately, the image is too dark to be useful when the light frequency filter is off. Using luvsview, I can easily change this value to 50 or 60Hz with its GUI. Is there a way to implement the same fix for Empathy? The chat client doesn't currently provide a way to change this setting, and I'm not experienced enough to write a piece of software that's able to, if that's even possible. On Windows, I had a configuration tool that could update the webcam settings while I was video chatting, but I don't see something similar for Linux. In short, is there a way to change the light frequency filter settings in a program I didn't write? Thanks so much! ___ 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
Re: [Linux-uvc-devel] Logitech Portable Webcam C905
Svend Hi,, please follow the instructions here: http://www.linuxtv.org/wiki/index.php/How_to_Obtain,_Build_and_Install_V4L-DVB_Device_Drivers and make sure you install the kernel headers or you wont be able to compile the drivers. Best regards, Paulo 2010/4/1 svenda...@yours.com: Hello with you ;-) The Logitech Portable C905 are not listet at http://linux-uvc.berlios.de/ lsusb tells: ID 046d:080a Logitech, Inc. Using: make all sv...@linux-s5kc:/tmp/uvcvideo-553dfd853cba make all make -C /tmp/uvcvideo-553dfd853cba/v4l all make[1]: Går til katalog '/tmp/uvcvideo-553dfd853cba/v4l' No version yet, using 2.6.31.12-0.2-desktop make[1]: Forlader katalog '/tmp/uvcvideo-553dfd853cba/v4l' make[1]: Går til katalog '/tmp/uvcvideo-553dfd853cba/v4l' scripts/make_makefile.pl Updating/Creating .config Preparing to compile for kernel version 2.6.31 File not found: /lib/modules/2.6.31.12-0.2-desktop/build/.config at ./scripts/make_kconfig.pl line 32, IN line 4. make[1]: Forlader katalog '/tmp/uvcvideo-553dfd853cba/v4l' make[1]: Går til katalog '/tmp/uvcvideo-553dfd853cba/v4l' Updating/Creating .config Preparing to compile for kernel version 2.6.31 File not found: /lib/modules/2.6.31.12-0.2-desktop/build/.config at ./scripts/make_kconfig.pl line 32, IN line 4. make[1]: *** Ingen regel til at skabe mål '.myconfig' som behøves af 'config-compat.h'. Stop. make[1]: Forlader katalog '/tmp/uvcvideo-553dfd853cba/v4l' make: *** [all] Fejl 2 sv...@linux-s5kc:/tmp/ Linux system: openSUSE 11.2 / Kernel 2.6.31.12-0.2-desktop / i686 / Intel Core i5 CPU 650 3,20GHz / Ram DRR3 8Gb Sorry about the Danish, but I live in Denmark ;-) I had just run Linux for 2 weeks so I am new into this. Printer + scanner + Webcam had I not been able to run yet. But still I have hope. Today I get the message from my online bank that it could not be run under Linux so that are a serious problem I get here. Have a nice day. Yours sincerely Svend Aage Web site: http://www.killscammers.org If you had been Scammed or other kind of Fraud or do you know some person who had been that. Then take a look at the Web site. Free the world for Scammers. Do NOT pay them any money at all. If at first you don't succeed, try, try, again. Then quit, no use being a damn fool about things. - Quote: W.C. Fields ___ 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
Re: [Linux-uvc-devel] OmniVision / I've screwed my system
Hi, On Wed, Mar 31, 2010 at 11:09:07 +0100, Paulo Assis wrote: change uvcvideo.conf in /etc/modprobe.d to options uvcvideo quirks=16 trace=255 sudo rmmod uvcvideo sudo modprobe uvcvideo By the way, I believe you can do this during _runtime_ of the kernel module, without rmmod'ing: echo 16 /sys/module/uvcvideo/parameters/quirks echo 255/sys/module/uvcvideo/parameters/trace Moritz ___ Linux-uvc-devel mailing list Linux-uvc-devel@lists.berlios.de https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
Re: [Linux-uvc-devel] OmniVision / I've screwed my system
By changing some uvc_trace(UVC_TRACE_VIDEO to uvc_trace(UVC_TRACE_IOCTL I was able to get out this message: uvcvideo: No fast enough alt setting for requested bandwidth. That gets printed the line before the return -EIO. I had options trace=255 from earlier. Hunted a bit and figured I could probably just set options trace=65535 to get UVC_TRACE_VIDEO to work too. Yep, one of the calls whose param I didn't change came out this time: uvcvideo: Device requested 5767680 B/frame bandwidth. Doesn't seem to make any difference whether I leave quirks=16 in or remove it. What are alt settings? Where can I go from here? ___ Linux-uvc-devel mailing list Linux-uvc-devel@lists.berlios.de https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
