What are the USB cams that are supported by Omega 2+
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Hi,
I was trying to build a timelapse camera as per instructions at https://docs.onion.io/omega2-project-book-vol1/timelapse-camera.htmlI am getting an error:
--- Opening /dev/video0...
stat: No such file or directorydmesg gives me:
[ 3046.924812] usb 1-1: new high-speed USB device number 2 using ehci-platform
[ 3047.083868] usb 1-1: current rate 1340 is different from the runtime rate 16000
[ 3047.108216] usb 1-1: 3:1: cannot get min/max values for control 2 (id 3)
[ 3047.127835] usb 1-1: 3:1: cannot get min/max values for control 2 (id 3)
[ 3598.766775] usb 1-1: USB disconnect, device number 2
[ 3603.441922] usb 1-1: new high-speed USB device number 3 using ehci-platform
[ 3603.601129] usb 1-1: current rate 1339 is different from the runtime rate 16000
[ 3603.625157] usb 1-1: 3:1: cannot get min/max values for control 2 (id 3)
[ 3603.644948] usb 1-1: 3:1: cannot get min/max values for control 2 (id 3)I would like to know what are the webcams supported?
My camera is :
https://www.amazon.com/gp/product/B0072I2240/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
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@Anil-Kulkarni I think you might have a power-current issue. It seems your camera is disconnecting . Can you please try to connect the camera via a powered USB HUB?
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@Lucas-Gozalvez I was powering my omega via a laptop. Now i connected it to power supply. After that also, i am still unable to capture any image from the webcam.
I see the error in dmesg as below:[ 37.005315] ERROR!!! CntlEnqueueForRecv: BlockAck Request frame length size = 44 incorrect
[ 42.804188] ERROR!!! CntlEnqueueForRecv: BlockAck Request frame length size = 44 incorrect
[ 42.904545] ERROR!!! CntlEnqueueForRecv: BlockAck Request frame length size = 44 incorrect
[ 53.352284] random: nonblocking pool is initialized
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@Anil-Kulkarni this may not be relevent so make of it what you will, but I wish someone had mentioned this to me before I wasted weeks on a project before understanding the issue.
Just because you provide external power to a USB device, does not mean that device ONLY draws from the external power source. These days I have a USB dongle kizmo that I use between my Omega and any external USB device. It shows me the v,w,a usage of the external USB device. What I have concluded from using this tool for several months, is that there is a significant percentage of USB devices on the market that do not function as specified. In one instance I tested an external USB device that was advertised to be able to be powered via USB or external power supply. The device worked poorly when powered via USB so I forked out the cash for the power pack. Even though the device indicators lit up like christmas tree indicating it was very well powered, it continued to attempt to draw significant current from the USB.
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@Anil-Kulkarni said in What are the USB cams that are supported by Omega 2+:
@Lucas-Gozalvez I was powering my omega via a laptop. Now i connected it to power supply. After that also, i am still unable to capture any image from the webcam.
I see the error in dmesg as below:what I mean is to connect the USB camera to a USB HUB (powered) and then the USB HUB to Omega Onion
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@Lucas-Gozalvez I will try get an usb hub and try this over the weekend. Thank you
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@Anil-Kulkarni another thing to check out is it does not seem to be registering as uvc [usb video class] most likely because omega2 has no driver and neither does that camera. that is a playstation 3 camera which does not have onboard driver for window or linux so usually you need to install one. if you can find cheese and install that it probably might then have a driver which will recognize that camera a a video device. if not cheese then do a search for other video packages. there is another called vlc that might have a package , i don't know. you could always go to openwrt website and do search on video packages.
edit: also you might save time if you just search google. took me 3 minutes to find this and although it's old it still may help you. there are others, btw, but i already used about 10 min. so time to move on. good luck.
http://blog.10100111001.com/2009/02/playstation-3-eye-web-cam-working-on.html
