Robert, thanks. However since we're talking 3.8.13* hotplug still is an
issue ?

amerello, have you tried loading these modules manually with modprobe ? Or
have you manually edited /etc/modules to include these there ?


On Fri, Sep 5, 2014 at 11:45 AM, Robert Nelson <robertcnel...@gmail.com>
wrote:

> On Thu, Sep 4, 2014 at 5:03 PM,  <amere...@gmail.com> wrote:
> > Hello,
> >   Could someone give me a hand? I'm having trouble getting a USB Camera
> to
> > work on my BeagleBone Black.
> >  I'm using a 5V@1A adapter (I thought it could be a power issue), but it
> > didn't solve it. I can provide the following information of my system:
> >
> > $ uname -a
> > Linux beaglebone 3.8.13-bone47 #1 SMP Fri Apr 11 01:36:09 UTC 2014 armv7l
> > GNU/Linux
> >
> > $ lsusb
> > Bus 001 Device 002: ID 1871:0101 Aveo Technology Corp.
> > Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
> > Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
> >
> > $ lsmod
> > Module                  Size  Used by
> > uvcvideo               53354  0
> > videobuf2_vmalloc       2418  1 uvcvideo
> > g_multi                47670  2
> > libcomposite           14299  1 g_multi
> >
> > $dmesg | less
> > ...
> > [ 1196.227457] usb usb1: usb wakeup-resume
> > [ 1196.227556] usb usb1: usb auto-resume
> > [ 1196.227607] hub 1-0:1.0: hub_resume
> > [ 1196.227706] hub 1-0:1.0: port 1: status 0101 change 0001
> > [ 1196.329800] hub 1-0:1.0: state 7 ports 1 chg 0002 evt 0000
> > [ 1196.329910] hub 1-0:1.0: port 1, status 0101, change 0000, 12 Mb/s
> > [ 1196.435171] usb 1-1: new high-speed USB device number 3 using
> musb-hdrc
> > [ 1196.562835] usb 1-1: skipped 1 descriptor after configuration
> > [ 1196.562886] usb 1-1: skipped 5 descriptors after interface
> > [ 1196.562929] usb 1-1: skipped 1 descriptor after endpoint
> > [ 1196.562967] usb 1-1: skipped 9 descriptors after interface
> > [ 1196.563301] usb 1-1: default language 0x0409
> > [ 1196.564922] usb 1-1: udev 3, busnum 1, minor = 2
> > [ 1196.564969] usb 1-1: New USB device found, idVendor=1871,
> idProduct=0101
> > [ 1196.565009] usb 1-1: New USB device strings: Mfr=1, Product=2,
> > SerialNumber=0
> > [ 1196.565044] usb 1-1: Product: USB2.0 Camera
> > [ 1196.565079] usb 1-1: Manufacturer: AVEO Technology Corp.
> > [ 1196.566432] usb 1-1: usb_probe_device
> > [ 1196.566483] usb 1-1: configuration #1 chosen from 1 choice
> > [ 1196.566782] usb 1-1: adding 1-1:1.0 (config #1, interface 0)
> > [ 1196.568276] uvcvideo 1-1:1.0: usb_probe_interface
> > [ 1196.568333] uvcvideo 1-1:1.0: usb_probe_interface - got id
> > [ 1196.568476] uvcvideo: Found UVC 1.00 device USB2.0 Camera (1871:0101)
> > [ 1196.574639] input: USB2.0 Camera as
> >
> /devices/ocp.3/47400000.usb/musb-hdrc.1.auto/usb1/1-1/1-1:1.0/input/input2
> > [ 1196.575902] usb 1-1: adding 1-1:1.1 (config #1, interface 1)
> > [ 1196.578270] hub 1-0:1.0: state 7 ports 1 chg 0000 evt 0002
> > [ 1196.578369] hub 1-0:1.0: port 1 enable change, status 00000503
> > [ 1199.015323] usb 1-1: usb auto-suspend, wakeup 0
> > [ 1199.029051] hub 1-0:1.0: hub_suspend
> > [ 1199.029145] usb usb1: bus auto-suspend, wakeup 1
> >
> > $ ls -al /dev/video0
> > crw-rw---T+ 1 root video 81, 0 Sep  4 23:45 /dev/video0
> >
> > But when I try to capture some image it fails. I tried with streamer,
> > mjpg-streamer and ffmpeg but always get timeout. My impression is that
> not
> > all the modules are being loaded. For instance when I plug the camera on
> my
> > laptop I get the following modules on lsmod:
> >
> > $ lsmod
> > ...
> > uvcvideo               80885  0
> > videobuf2_vmalloc      13216  1 uvcvideo
> > videobuf2_memops       13362  1 videobuf2_vmalloc
> > videobuf2_core         40664  1 uvcvideo
> > videodev              134688  2 uvcvideo,videobuf2_core
> > ...
> >
> > The 3 last aren't being loaded on the BBB. Do you have any suggestions?
> What
> > could it be?
>
> They are built-in:
>
>
> https://github.com/RobertCNelson/bb-kernel/blob/am33x-v3.8/patches/defconfig#L2574
>
> Regards,
>
> --
> Robert Nelson
> http://www.rcn-ee.com/
>
> --
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