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While I connected two more same camera, /dev/video* lost!! #46
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Here's information by $./euvccam-fw -p Manufacturer String: The Imaging Source Europe GmbH I still can't get capture from my device now... $sudo mknod /dev/video0 c 81 0 Can anyone tell me how can I solve this question? thanks all, |
It seems happened this question after I git new clone on github. Please help me to get capture. thanks |
Hi, Let's start with getting your devices working properly. What does the command 'dmesg' say when you connect a camera? Ideally it would be something like:
What does it say for your camera? |
Hi Edgar, Here it is. [ 217.648252] usb 1-2: USB disconnect, device number 8 And here is terminal's message after I connect my another camera. [ 224.641986] usb 1-2: SerialNumber: 24514192 thanks! |
Ok, The problem is that your cameras do not register as uvc devices. You need to follow the steps described in our wiki. Simply write dmk42uc03_143.euvc to your camera. After a reconnect the line
should appear. Now you have a /dev/video* node that allows camera interaction. Please tell me if there where any problems. Best regards, Edgar |
I know that steps for camera. But my problem is still can't get UVC device.
After done this and reconnect camera,
And I can't switch to UVC mode:
And Flags still be "0" after I done this tips.(It seems will be "1" before...)
Does it mean "42BUC03" can't use from now on?
But I'm sure that I can use 42BUC03 one month ago.. How can I do for next... Thank you, Edgar. All the best, ccrb |
It seems like our firmware developer forgot to publish a firmware file where the uvc flag is set by default. I am terribly sorry for the inconvenience.
Should set the uvc flag as expected. I will inform our firmware developer of this problem. Best regards, Edgar |
Ahh, so nice for hear that. It can switch to UVC mode now!
Thanks a lot, Edgar!! Btw, How can I use several same camera on the same time? It seems just need to change device's number but I don't know where should change. Thank you for your response very much. All the best, |
That is good to hear! To use multiple cameras simultaneously you need to open all wanted device nodes. Best Regards, Edgar |
Hello Edgar, Thank you so much for help me solve my camera UVC mode problem and hint about get my device node by udev. Now, I know how to find my device automatically. Thank you very much for your time. Wish you all the best, ccrb |
No problem. Best regards, Edgar |
Hello all,
I have several DMK 42BUC03 camera and I want to grab images by Linux.
I used this sample code on my Lubuntu14.04 (https://gist.github.com/TIS-Edgar/10f04501f49b6b3bf75e),
and everything is fine by using only one camera.
But two question occurred.
Today I want try two same camera and I can find video0&1 at first.
But after I restart my PC, I can't find any /dev/video* !!!
I can find imagingsource camera by
$lsusb
And it returns
Bus 001 Device 002: ID 199e:8208 The Imaging Source Europe GmbH
Bus 001 Device 008: ID 199e:8208 The Imaging Source Europe GmbH
How can I solve this question?
And my second question is:
How I can get capture by using two more same camera(42BUC03).
I tried to change code in main.cpp (open_device((char_)"/dev/video0");), but it can't get two camera capture at the same time before I lost my /dev/video_
Can anyone tell me how can I get several capture by same camera?
thanks all,
-ccrb
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