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Oh sorry for the confusion. At this point I can only offer you two solutions: 1. Posts: 141Joined: Mon Jul 30, 2012 7:25 am by AdrianH » Thu Oct 25, 2012 4:10 pm Yes I originally had the camera on one of the RasPi's USB ports.I also You should then be able to test via a LiveCD.

What are the alternatives to compound interest for a Muslim? The issue remains unresolved. vBulletin ©2000 - 2016, Jelsoft Enterprises Ltd. Subscribing... https://github.com/TheImagingSource/tiscamera/issues/12

Vidioc_dqbuf: No Such Device

In my case the bttv card returns error 5, EIO, which according to the the V4L spec may or may not indicate a serious error. I did 'modprobe -r b44' and disabled networking and 'eth0' was no longer showing up in 'cat /proc/interrupts'. This has also been checked in upstream as an experimental fix. Bug watch updates for SourceForge.net Tracker are disabled.

I have a multimeter but will have to use some kind of microusb adapter to measure voltage/current using that. Can it be related to my libv4l2 library or my webcam's driver? The Ubuntu Kernel Team's preferred policy is for all patches to be submitted and accepted into the upstream kernel before agreeing to merge them into the Ubuntu kernel. Vidioc_qbuf Invalid Argument At this point it boils down to possible hardware issues (faulty cable, not enough bandwidth) or kernel problems (you updated v4l2, but did you also update uvcvideo?) nickaein commented Aug 30,

See original description Tags: cft-2.6.27 kj-comment linux-2.6.27 Edit Tag help Stephan Fabel (sfabel) on 2008-08-22 description: updated Tim Howard (mexeled) wrote on 2008-08-28: #1 Same error here, using this card: http://www.amazon.com/Hauppauge-ImpactVCB-Capture-166-Profile/dp/B0002P4TK0/ref=sr_1_1?ie=UTF8&s=electronics&qid=1219903140&sr=8-1 Vidioc_dqbuf Invalid Argument For this you will have to contact us via [email protected] As previously stated the 42 somewhat chokes on smaller ones. I have test another camera (a low-end webcam) on embedded system with guvcview and it works, just to make sure if it is possible to capture images.

A crossword so simple, it practically solves itself Read past end of file to recover data What happens to all of the options when they expire? V4l2_buffer TIS-Stefan closed this Jan 27, 2015 mattikra referenced this issue Jun 4, 2016 Open tcamsrc fails with bayer output #67 Sign up for free to join this conversation on GitHub. Posts: 32Joined: Wed Jun 27, 2012 7:43 pm by AdrianH » Thu Nov 01, 2012 11:07 pm Nope still errors so not dependent on camera[1] "Gain", default 57343, current 0[1] mmap But this is more of a speculation, that would need some mmap benchmarking.

Vidioc_dqbuf Invalid Argument

Someone suggested to turn off the nodrop parameter of uvcvideo module to make sure the erroneous frames (if any) are not dropped. https://community.nxp.com/thread/346348 How does Energy Field interact with effects that say you lose life? Vidioc_dqbuf: No Such Device up vote 0 down vote I experienced the same problem. Vidioc_streamon I've just tried installing the 2.6.28 Kernel from Jaunty and I'm no longer getting these EIO errors and kernel warning messages when trying out the sample programs.

I haven't tried the tracking features, but will when I have time.I did also notice that MJPEG worked, but had an ugly color balance issue so I'm back with the YUYV Share bypass capacitors with ICs or not? As a result, the kernel team would appreciate it if you could please test this newer 2.6.27 Ubuntu kernel. nickaein commented Aug 2, 2014 @TIS-Edgar: Yes, the resolution is set to 1280x960 inside the sample code. V4l2_requestbuffers

OpenCV Error: Bad argument (Array should be CvMat or IplImage) in cvGetSize, file /OE/angstrom-v2012-05/build/tmp-angstrom_v2012_05-eglibc/work/armv7a-angstrom-linux-gnueabi/opencv-2.3.1-r3/opencv/modules/core/src/array.cpp, line 1238 Traceback (most recent call last): File "movementtracker.py", line 117, in t.run() File "movementtracker.py", line Do you want to help us debug the posting issues ? < is the place to report it, thanks ! It works without any error on Ubuntu 13.04 (with kernel 3.8) on a x86 machine, but due to some third-party drivers I've stuck on 3.0.36+ kernel on my ARM processor. Unfortunately while programs no longer terminate with the 'VIDIOC_DQBUF error 5, Input/output error' they'll quickly get stuck in a EAGAIN loop (usually after 2 or 3 EIO errors).

Where can I get a file/list of the common and scientific names of species? Vidioc_reqbufs Here is a sample: I wonder if there is some problem in synchronization of writing and reading the image buffer. Please keep in mind, only the maximum resolution of 1280x960 works.

If mmap are unoptimized on the Raspberry Pi, then this might contribute also to the problems with motion that many users are seeing.

Very unusual though, because I can access all the streams using tvtime just fine. Isnt it true that the peripherals need to draw enough current from the source to work? If a motion occurs, it takes a snapshot of the moving object and saves it. Xioctl Does dmesg print anything useful?

Terms Privacy Security Status Help You can't perform that action at this time. Intel® RealSense™ member ddiakopoulos commented Mar 14, 2016 @Nikvand definitely test through a powered USB hub first. share|improve this answer answered Oct 4 '12 at 18:37 RIP 412 3 Unfortunately this is not my solution. Do you maybe have the possibility to test this with a more recent kernel (say >= 3.8)?

tvtime seems to work just fine with my cameras (last I tried them). If the camera says it will deliver 30 fps it will deliver 30 fps no matter if the receiving usb controller can handle it or not (except concerning high exposure settings). Here is some results: Reported (v4l2-ctl -P) Measured ======================== ========== 10 4 15 6 25 10 30 12 (To change the framerate inside the code, I implemented this function and called At first I thought there is some problem with the buffering or board processor.

If a motion occurs, it takes a snapshot of the moving object. Here is the parts of dmesg I guess is important (I have uploaded the whole dmesg here: http://pastebin.com/pS7gB8cn): Registering the camera (during the boot): [ 4.019745] usb 2-1.4: new high speed I think I will search for another package, where does one find a list of packages for Raspbian on the Pi?Adrian Posts: 32Joined: Wed Jun 27, 2012 7:43 pm by lingon itbroke (jwlangston21) wrote on 2009-03-11: #17 I recently reinstalled with Ubuntu 8.10 and installing all openCV items in Synaptic's manager.

You signed out in another tab or window. WaRP 7 Read More NEWS   10 Nov 2015 7 playful uses for NFC in gaming Read More NEWS   6 Nov 2015 Meet an NFC innovator: Speech Code Read More NEWS   5 Thanks, Stephan Tim Howard (mexeled) wrote on 2009-08-04: #27 cat /proc/interrupts Edit (914 bytes, text/plain) I was not able to get it working by disabling the network (unless I'm misunderstanding something). How to defeat the elven insects using modern technology?

Report a bug This report contains Public information Edit Everyone can see this information. But when I resorted back to my older power supply, it was gone. http://opencvlibrary.svn.sourceforge.net/viewvc/opencvlibrary/trunk/opencv/src/highgui/cvcap_v4l.cpp?revision=1428 : 1169 if (-1 == xioctl (capture->deviceHandle, VIDIOC_DQBUF, &buf)) { 1170 switch (errno) { 1171 case EAGAIN: 1172 return 0; 1173 1174 case EIO: 1175 /* Could ignore EIO, see Apologies if it has reached you inappropriately.] This bug was flagged as having a patch attached.

This seemed to avoid the issues highgui's v4l capture drivers (although in the current OpenCV package the python setters were broken and required us to hack together our own little python Last edited by serhancan; August 1st, 2012 at 01:52 PM. I tried it and the framerate was still the same. Now using Ubuntu 9.04 with packages from Synaptic.

Comment on this change (optional) Email me about changes to this bug report linux (Ubuntu) Edit Invalid Undecided Unassigned Edit You need to log in to change this bug's status. When the video comes up, the display is purely black, and quickly terminates along with new dmesg entries. Join them; it only takes a minute: Sign up Webcam: libv4l2 & VIDIOC_DQBUF : No such device up vote 5 down vote favorite 1 I have written a python code by