Error Interface Open V4l
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Sign in Pricing Blog Support Search GitHub This repository Watch 4 Star 10 Fork 1 RetroMelon/Raspberry-Pi-Car Code Issues 1 Pull requests 0 Projects 0 Pulse Graphs New issue Error Opening V4L Interface: No suck file or error opening v4l interface no such file or directory directory #1 Closed kassalkane opened this Issue Feb 22, 2015 · 4 comments Projects error opening v4l interface permission denied None yet Labels None yet Milestone No milestone Assignees No one assigned 2 participants kassalkane commented Feb 22, 2015 mjpg-streamer error opening v4l interface no such file or directory Hi, Im having an issue getting the mjpgstreamer working. When I run ./startrobot I get the following. Any suggestion as to what the issues is? I have the Raspberry PI Camera and have tested that it
Init_videoin Failed
works with raspistill. pi@raspberrypi ~/robot $ sudo ./startrobot CHANGING PI-BLASTER FROM PWM TO PCM... ./startrobot: 4: ./startrobot: ./piblasterpcm.sh: Permission denied PI-BLASTER SETTINGS CHANGED. NOW RUNNING SERVERS... rm: cannot remove `mjpgstreamer.log': No such file or directory Starting server. done... MJPG Streamer Version: svn rev: Unversioned directory i: Using V4L2 device.: /dev/video0 i: Desired Resolution: 320 x 240 i: Frames Per Second.: 5 i: Format............: MJPEG ERROR opening V4L interface: No such file or mjpg streamer raspberry pi camera module directory Init v4L2 failed !! exit fatal i: init_VideoIn failed server listening on port 8090 visit http://ipaddress:8090/socket.html Owner RetroMelon commented Feb 22, 2015 Hi there. From what I can see one of the problems you are facing is being denied permissions when running this line of code in piblasterpcm.sh: echo raspberry | sudo -S ./pi-blaster/pi-blaster start --pcm It is worth checking that your password is set to the default ("raspberry"), or changing the script in this line to suit. As for the "opening V4L interface" problem, you should check that the webcam is working by installing fswebcam and running the following command: fswebcam -d/dev/video0 ~/test.jpg. Then you can check in your home directory and see if it captured an image successfully. If that doesn't work try installing some dependencies: sudo apt-get update sudo apt-get upgrade sudo apt-get install libjpeg8-dev imagemagick libv4l-dev Restart your pi and run the command again. This is as far as my knowledge extends without some serious googling, but let me know how it goes! Edit: Sorry, just read that you've already checked your camera is working using raspistill. kassalkane commented Feb 24, 2015 Thanks for getting back to me. I did some research and found that the video0 device isn't used with the native PI camera. So I tried another mjpgst
opening V4L interface From: Robin
USB UVC camera (Read 5330 times) Cure Newbie Posts: 44 Karma: +2/-1 USB UVC camera « on: December 12, 2012, 08:00:43 AM » I am trying to use a USB UVC camera with Debian, but I can't get it https://www.olimex.com/forum/index.php?topic=507.0 to work. I am new to Linux and have been searched google all night, but https://forum.openwrt.org/viewtopic.php?id=12286 I'm stuck. When I plug the webcam in to ubuntu it shows up as /dev/video0 so I know it works. When I plug the camera into the A13 it says:"usb 2-1.3: new high speed USB device number 6 using sw-ehci" and/dev/usbdev2.6 shows upI have installed uvccapture successfully:# apt-get install uvccaptureWhen I try the uvccapture command it gives an error:# uvccapture -d/dev/usbdev2.5 -x640 error opening -y480 -t10 -owebcam.jpg -q95 ERROR opening V4L interface: No such file or directoryEverything I've read says to start troubleshooting with lsusb, but that gives an error as well:# lsusb-bash: lsusb: command not foundDoes the A13 support UVC cameras? Any ideas what I need to do, to get this working?Please help. Logged TranceTrouble Newbie Posts: 15 Karma: +0/-0 Re: USB UVC camera « Reply #1 on: December 12, 2012, 10:19:51 AM » lsusb is standard not on the error opening v4l device. i think this is also the problem for V4L, try searching for those two packages with apt-cache search and install them with apt-get install edit: i think you need the: apt-get install v4l-conf Logged Cure Newbie Posts: 44 Karma: +2/-1 Re: USB UVC camera « Reply #2 on: December 12, 2012, 03:29:57 PM » I found a website for Rasberry Pi that might hold the answer:http://insipidramblings.com/?p=55It looks like UVC and v4l are turned OFF in the kernel .img I downloaded from the wiki. I built a new kernel and will test it when I get home. If it works I will post instructions on what I did. It's a shame I had to spend all day searching the Internet for an answer, I've never used Linux before and the steps to build your own SD card on the wiki don't really work or I would have seen the answer sooner. Good product Olimex, but far too complicated for the average person... Logged Cure Newbie Posts: 44 Karma: +2/-1 Re: USB UVC camera « Reply #3 on: December 14, 2012, 09:52:59 AM » Problem solved, I've posted the solution here:https://www.olimex.com/forum/index.php?topic=518.0 Logged Print Pages: [1] « previous next » Olimex Support Forum » OLinuXino Android / Linux boards and System On Modules » A13 » USB UVC camera Theme designed by CrimeS SMF 2.0.2 | SMF © 2011, Simple Machines
interface Pages 1 You must login or register to post a reply RSS topic feed Posts: 4 1 Topic by flowersrj 2007-08-29 03:11:13 flowersrj Member Offline Registered: 2007-08-12 Posts: 52 Topic: webcam - ERROR opening V4L interface Hi,I am on my 2nd webcam trying it to get one to work under WhiteRussian 0.9 on a new ASUS WL-500gP. dmesg reports...drivers/usb/spca5xx.c: SPCA5XX camera found. Pixart PAC207BCAdrivers/usb/spca5xx.c: [spca5xx_probe:8380] Camera type GBRGdrivers/usb/pac207.h: [pac207_config:148] Find Sensor PA207drivers/usb/spca5xx.c: [spca5xx_getcapability:2207] maxw 352 maxh 288 minw 160 minh 120lsusb shows that camera is seen on USB port ... and LED on camera lightsBus 004 Device 001: ID 0000:0000Bus 003 Device 001: ID 0000:0000Bus 002 Device 001: ID 0000:0000Bus 002 Device 002: ID 093a:2468 Pixart Imaging, Inc.Bus 001 Device 001: ID 0000:0000/etc/modules consists of ...wlusbcoreusbserialusb2pl2303videodevspca5xxfatvfatWhen I do a .... spcacat -d /dev/videoo -g -f jpg -p 10000 -o > /tmp/spcacat.logspcacat.log contains the following ...Spcaview version: 1.1.5 date: 12/12/2005 (c) mxhaard@magic.frvideo /dev/video0ERROR opening V4L interfaceThe webcam is marketed as Micro Innovations IC50C and listed on SPCA5XX site as compatible but I feel I am missing a piece of the puzzle. Obviously the OS sees it but nothing more it seems. Can anyone offer a suggestion? Any way to get a more descriptive error message in spcacat.log?Thanks,Rich 2 Reply by veekoo 2007-08-29 11:24:09 (edited by veekoo 2007-08-29 11:24:33) veekoo Member Offline Registered: 2007-02-22 Posts: 10 Re: webcam - ERROR opening V4L interface "Filename" for that device may be /dev/v4l/video0. Try "ls /dev/video0 /dev/v4l/video0". You may not be able to use /dev/v4l/video0 directly with spcacat. In that case do "ln -s /dev/v4l/video0 /dev/video0; spcacat -d /dev/video0 . . ." (I'm not too sure abut this, it's been several months since I last played with spca5xx cameras). 3 Reply by flowersrj 2007-08-29 23:48:39 (edited by flowersrj 2007-08-30 01:29:19) flowersrj Member Offline Registered: 2007-08-12 Posts: 52 Re: webcam - ERROR opening V4L interface Hi Veeko,Deleted and recreated my link--now it works !!Thanks,Rich 4 Reply by amarendermail 2009-04-01 14:31:05 amarendermail Member Offline From: INDIA Registered: 2009-04-01 Posts: 1 Re: webcam - ERROR opening V4L interface which drivers are needed to make u