For temporary solution I commented-out all occurences of errno_exit ("VIDIOC_DQBUF") in /opencv/otherlibs/highgui/cvcap_v4l.cpp and rebuild opencv. I have configured motion to move the images from the RAM disk to the SD card after the motion event is over. For me, nothing has changed between kernel versions. You're saying that GStreamer has a "easy to use" interface to access V4L devices also? have a peek at this web-site
Thank you very much for your help!! To do this edit/create the file /etc/modprobe.d/usb-autosuspend.conf and append the line: options usbcore autosuspend=-1 After that a reboot should set the option. All the best, ccrb TheImagingSource member TIS-Edgar commented Sep 11, 2015 Hi, If the suspend command does not work, you stll have the option of setting kernel parameters. As a result, the kernel team would appreciate it if you could please test this newer 2.6.27 Ubuntu kernel.
But sometimes it may fail. They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own. David Coles (dcoles) wrote on 2009-02-16: #14 Alas, yes. My 21 yr old adult son hates me Are there textual deviations between the Dead Sea Scrolls and the Old Testament?
No XvImage port available with yuyv format. It looks like the repos I have already does what your patch changes. .. Not the answer you're looking for? V4l2_buffer Structure But I can't get it to build.
Do you this hardware can connect more than three "42BUC03" camera and used for image process? Struct V4l2_buffer You can the read the messages with dmesg. To make sure I understand your setup correctly: You took this gist and simply changed the device node so that you have a executable for each camera. I have problem with the settings of my video card or graphical card.
This isn't caught by any of the error handling in python and causes the interpreter to terminate. Vidioc_querybuf You are currently viewing LQ as a guest. I"ll use 24fps for camera cause I have use gige-cam to detect my object before. Maybe a driver or a library (libv4l2?) problem?
How to restrict InterpolatingFunction to a smaller domain? http://www.linuxquestions.org/questions/linux-hardware-18/xdtv-ioctl-vidioc_dqbuf-error-input-output-742048/ I'm tried to solve this, do you have any suggest? Vidioc_streamon If mmap are unoptimized on the Raspberry Pi, then this might contribute also to the problems with motion that many users are seeing. Vidioc_dqbuf No Such Device When I powered the board with a 5V supply, the problem went away.
CoffeeKing!!! David Coles (dcoles) wrote on 2009-02-11: #10 At the moment I'm building using the currently intrepid package source. I've included the code I am using to capture and display frames, there are two techniques in the code - both of which do not work in 2.6.24 or 2.6.27-rc3. I'm using the one stable combination I stumbled across: v4l2 palette 6, framerate 2, despeckle EedDl (whatever that means), gap 600, ffmpeg_cap_new on, ffmpeg_bps 500000, tracking off, rotate 180 (camera is V4l2_requestbuffers
USB-2.0 4-Port HUBBus 001 Device 005: ID 046d:0825 Logitech, Inc. Thanks, Stephan Tim Gardner (timg-tpi) wrote on 2012-10-02: #30 expiring for lack of traffic Changed in linux (Ubuntu): status: Incomplete → Invalid See full activity log To post a comment you Is there something different in those cases? Source Please wait...
thanks a lot All the best, ccrb TheImagingSource member TIS-Edgar commented Sep 10, 2015 Hi, Please excuse the late reply. V4l2_buf_type_video_capture This gives me continuous coverage (I've had uptimes of a month) but with 30s gaps whenever the USB/service fails.I tried apt-get upgrade a while ago but it bricked my pi each Maybe I should buy one usb hub to connect all my cam on one usb port?
Introduction to Linux - A Hands on Guide This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started To check whether this assumption is correct, please try the procedure described at https://access.redhat.com/articles/65410 (citing): The first is a big hammer approach. I purchased another lower spec camera the Logitech C200 which can only do a max of 640 x 480 pix. Vidioc_reqbufs I wonder if the problem is voltage or current?
When I run xdtv from console the program crash with ioctl VIDIOC_DQBUF: error input/output not immediately but half minute after *** MIXER DEVICE TYPE = alsa. Bug watch updates for SourceForge.net Tracker are disabled. Why can't the second fundamental theorem of calculus be proved in just two lines? If it does fix it, just moving to the 2.6.28 kernel might be the best solution especially with Jaunty in late Alpha now. (Still quite odd that only one application appeared
For now, I can get images on each camera on their own execute. LinuxQuestions.org > Forums > Linux Forums > Linux - Hardware xdtv: ioctl VIDIOC_DQBUF: error input/output User Name Remember Me? If you tell me how, I can go on and test patches/compile new modules. See also: http://article.gmane.org/gmane.comp.lib.opencv/7660/match=vidioc%5fdqbuf David Coles (dcoles) wrote on 2009-02-10: #7 Thanks for the link ciril.
Capture is slow at 640 x 480 but still no errors to the web page, will ut back on image capture to see how the Pi copes.AdrianSpoken to soon it did All rights reserved.KDE Community Forums has no liability for any content or post. As simple as that. Could it be the motherboard?
Isnt it true that the peripherals need to draw enough current from the source to work? share|improve this answer answered Oct 4 '12 at 18:37 RIP 412 3 Unfortunately this is not my solution. Affecting: OpenCV Filed here by: David Coles When: 2009-02-10 Target Distribution Baltix BOSS Juju Charms Collection Elbuntu Guadalinex Guadalinex Edu Kiwi Linux nUbuntu PLD Linux Tilix tuXlab Ubuntu Ubuntu Linaro Evaluation David Coles (dcoles) wrote on 2009-02-16: #15 Current open bug on the OpenCV bugtracker.
This is xdtv 2.4.1cvs9 running on Linux/x86_64 (2.6.26-2-amd64). I'm not having the problem anymore. I did 'modprobe -r b44' and disabled networking and 'eth0' was no longer showing up in 'cat /proc/interrupts'. tags: added: kj-comment Stephan Fabel (sfabel) wrote on 2009-08-04: #21 I've been trying with - OpenCV 1.0.0 from source - OpenCV 1.1.0pre1 from source - OpenCV SVN (current as of today)