If you're using Roberts instructions for compiling the kernel, did you poke
around in menuconfig to see if the cam needed a specific driver compiled in
? Also I would recommend if this is an option that you actually compile the
driver module into the kernel ( <*> ) instead of as a module ( [M] ).

Passed this, sorry I have no further advice to add.


On Mon, Feb 17, 2014 at 6:50 AM, Robert Nelson <[email protected]>wrote:

>
>
>
> On Sat, Feb 15, 2014 at 11:41 PM, <[email protected]> wrote:
>
>> Hello all,
>>
>> Sorry for the long message, but I want to include all the details I
>> thought were necessary.
>>
>> I am extremely new to Linux, but I have recently purchased a Beaglebone
>> Black, and I am trying to set up a webcam server on it. I have tried to
>> follow several tutorials online, but none of them have worked, because I
>> cannot get the webcam to work. I have a Logitech C525 HD webcam, which is
>> on the list of supported webcams (http://www.ideasonboard.org/uvc/). I
>> am running Debian 7 (wheezy) with Linux Kernel 3.8.13-bone37. I have
>> installed LXDE so I have a desktop, and VLC to check the functionality of
>> the webcam. I am booting off of a 16GB micro SD card. The Beaglebone is
>> being powered by 5 volts via the barrel connector and a power supply. The
>> webcam, keyboard, and mouse are connected to a powered USB hub. The
>> *lsusb* command returns "Bus 001 Device 003: ID 0460:0826 Logitech Inc"
>> whenever I have the webcam plugged in; so I know the camera is being
>> recognized. However, when I run the *ls /dev/video** command, I get "ls:
>> cannot access /dev/video*: No such file or directory". This seems to be
>> what VLC is looking for, so it doesn't see the webcam. When I run the
>> *dmesg|tail* command, none of the entries mentioned anything about video
>> or the UVC driver. I ran *sudo modprobe -v uvcvideo*, then I ran the
>> *dmesg|tail* command again, and this time I got 2 additional lines 1)
>> usbcore registered new interface driver uvcvideo 2) USB video class driver.
>> I apparently have to enable the uvc driver after each restart, but I still
>> don't get anything when from the *ls /dev/video** command.
>>
>>
>>
>> I should also mention that this is my current configuration, but I have
>> also tried this with Ubuntu 12 and Ubuntu 13 (both installed with
>> instructions from (
>> http://elinux.org/Beagleboard:Ubuntu_On_BeagleBone_Black). I get the
>> same results no matter what I do. I have also tried several other webcams
>> that were not on the list of supported webcams, with the same results. I
>> know the webcams work with Linux because I have tried them on an old laptop
>> that is running Mint 12, and they worked just fine.
>>
>>
>>
>> Since the webcams work in Mint, and many other people have been able to
>> get them working on the Beaglebone, I am obviously missing something, but I
>> don't know where to go from here. Any help would be greatly appreciated.
>>
>
>
> There are known usb issues with the 3.8 kernel.. Please test with "either"
> Ubuntu/Debian base microSD:
>
> http://elinux.org/BeagleBoardUbuntu
> http://elinux.org/BeagleBoardDebian
>
> Then,
>
> cd /opt/scripts/
> git pull
> ./tools/update_kernel.sh --beta-kernel
> (reboot)
>
> To pull in a v3.13.x based kernel..
>
> Regards,
>
> --
> Robert Nelson
> http://www.rcn-ee.com/
>
> --
> For more options, visit http://beagleboard.org/discuss
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