Hello, This is when I connect the camera udevadm monitor test monitor will print the received events for: UDEV - the event which udev sends out after rule processing KERNEL - the kernel uevent
KERNEL[803.263336] add /devices/platform/usbhs_omap/ehci-omap.0/usb1/1-2/1-2.3/1-2.3.4 (usb) KERNEL[803.267456] add /devices/platform/usbhs_omap/ehci-omap.0/usb1/1-2/1-2.3/1-2.3.4/1-2.3.4:1.0 (usb) KERNEL[803.269287] add /devices/platform/usbhs_omap/ehci-omap.0/usb1/1-2/1-2.3/1-2.3.4/1-2.3.4:1.1 (usb) KERNEL[803.269958] add /devices/platform/usbhs_omap/ehci-omap.0/usb1/1-2/1-2.3/1-2.3.4/1-2.3.4:1.2 (usb) KERNEL[803.270721] add /devices/platform/usbhs_omap/ehci-omap.0/usb1/1-2/1-2.3/1-2.3.4/1-2.3.4:1.3 (usb) KERNEL[803.276214] add /devices/platform/usbhs_omap/ehci-omap.0/usb1/1-2/1-2.3/1-2.3.4/usb_device/usbdev1.15 (usb_device)********** UDEV [803.277191] add /devices/platform/usbhs_omap/ehci-omap.0/usb1/1-2/1-2.3/1-2.3.4 (usb) UDEV [803.306091] add /devices/platform/usbhs_omap/ehci-omap.0/usb1/1-2/1-2.3/1-2.3.4/usb_device/usbdev1.15 (usb_device) UDEV [803.318603] add /devices/platform/usbhs_omap/ehci-omap.0/usb1/1-2/1-2.3/1-2.3.4/1-2.3.4:1.2 (usb) UDEV [803.324249] add /devices/platform/usbhs_omap/ehci-omap.0/usb1/1-2/1-2.3/1-2.3.4/1-2.3.4:1.1 (usb) UDEV [803.329712] add /devices/platform/usbhs_omap/ehci-omap.0/usb1/1-2/1-2.3/1-2.3.4/1-2.3.4:1.0 (usb) UDEV [803.333160] add /devices/platform/usbhs_omap/ehci-omap.0/usb1/1-2/1-2.3/1-2.3.4/1-2.3.4:1.3 (usb) still no /dev/video0 ls -la /dev/v* crw-rw---- 1 root tty 7, 0 Jan 1 2000 /dev/vcs crw-rw---- 1 root tty 7, 1 Jan 1 2000 /dev/vcs1 crw-rw---- 1 root tty 7, 2 Jan 1 2000 /dev/vcs2 crw-rw---- 1 root tty 7, 3 Oct 29 13:51 /dev/vcs3 crw-rw---- 1 root tty 7, 128 Jan 1 2000 /dev/vcsa crw-rw---- 1 root tty 7, 129 Jan 1 2000 /dev/vcsa1 crw-rw---- 1 root tty 7, 130 Jan 1 2000 /dev/vcsa2 crw-rw---- 1 root tty 7, 131 Oct 29 13:51 /dev/vcsa3 root@beagleboard:~# lsusb Bus 001 Device 002: ID 0424:9514 Standard Microsystems 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 Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp. Bus 001 Device 004: ID 0409:0059 NEC Corp. HighSpeed Hub Bus 001 Device 005: ID 413c:2005 Dell Computer Corp. RT7D50 Keyboard Bus 001 Device 006: ID 046d:c001 Logitech, Inc. N48/M-BB48 [FirstMouse Plus] Bus 001 Device 015: ID 046d:082d Logitech, Inc. *********************************************************************************** udevadm monitor --udev monitor will print the received events for: UDEV - the event which udev sends out after rule processing camera removed***************************************************** UDEV [1325.916811] remove /devices/platform/usbhs_omap/ehci-omap.0/usb1/1-2/1-2.3/1-2.3.4/1-2.3.4:1.1 (usb) UDEV [1325.918489] remove /devices/platform/usbhs_omap/ehci-omap.0/usb1/1-2/1-2.3/1-2.3.4/1-2.3.4:1.0 (usb) UDEV [1325.919282] remove /devices/platform/usbhs_omap/ehci-omap.0/usb1/1-2/1-2.3/1-2.3.4/1-2.3.4:1.2 (usb) UDEV [1325.923005] remove /devices/platform/usbhs_omap/ehci-omap.0/usb1/1-2/1-2.3/1-2.3.4/1-2.3.4:1.3 (usb) UDEV [1325.928437] remove /devices/platform/usbhs_omap/ehci-omap.0/usb1/1-2/1-2.3/1-2.3.4/usb_device/usbdev1.15 (usb_device) UDEV [1325.932709] remove /devices/platform/usbhs_omap/ehci-omap.0/usb1/1-2/1-2.3/1-2.3.4 (usb) camera added *************************************************************************** UDEV [1329.344727] add /devices/platform/usbhs_omap/ehci-omap.0/usb1/1-2/1-2.3/1-2.3.4 (usb) UDEV [1329.376313] add /devices/platform/usbhs_omap/ehci-omap.0/usb1/1-2/1-2.3/1-2.3.4/usb_device/usbdev1.16 (usb_device) UDEV [1329.389008] add /devices/platform/usbhs_omap/ehci-omap.0/usb1/1-2/1-2.3/1-2.3.4/1-2.3.4:1.2 (usb) UDEV [1329.396241] add /devices/platform/usbhs_omap/ehci-omap.0/usb1/1-2/1-2.3/1-2.3.4/1-2.3.4:1.1 (usb) UDEV [1329.401795] add /devices/platform/usbhs_omap/ehci-omap.0/usb1/1-2/1-2.3/1-2.3.4/1-2.3.4:1.0 (usb) UDEV [1329.406739] add /devices/platform/usbhs_omap/ehci-omap.0/usb1/1-2/1-2.3/1-2.3.4/1-2.3.4:1.3 (usb) This is what I get in /var/log/messages Oct 29 14:17:28 beagleboard user.info kernel: usb 1-2.3.4: USB disconnect, device number 16 Oct 29 14:17:31 beagleboard user.info kernel: usb 1-2.3.4: new high-speed USB device number 17 using ehci-omap Is there anything else that I can test / provide Thanks On Wed, Oct 30, 2013 at 5:58 PM, Khem Raj <raj.k...@gmail.com> wrote: > On Wed, Oct 30, 2013 at 1:51 PM, Edward Vidal <vidal.devel...@gmail.com> > wrote: > > Hello, > > I am trying to add a c920 camera to my systems. I am not getting a > > /dev/video0. > > lsusb --verbose shows the HD Pro Webcam C920 > > Bus 001 Device 007: ID 046d:082d Logitech, Inc. > > Device Descriptor: > > bLength 18 > > bDescriptorType 1 > > bcdUSB 2.00 > > bDeviceClass 239 Miscellaneous Device > > bDeviceSubClass 2 ? > > bDeviceProtocol 1 Interface Association > > bMaxPacketSize0 64 > > idVendor 0x046d Logitech, Inc. > > idProduct 0x082d > > bcdDevice 0.11 > > iManufacturer 0 > > iProduct 2 HD Pro Webcam C920 > > iSerial 1 211EF9AF > > bNumConfigurations 1 > > plus much more information > > > > I created /etc/udev/rules.d/10-c920.rules > > SUBSYSTEM=="video4linux", BUS=="usb", ATTRS{idvendor}=="0x046d", > > ATTRS{idProduct}=="0x082d", NAME="video0", MODE:="0660" > > > > mknod /dev/video0 c 81 0 > > > > when I v4l2-ctl --all error no /dev/video0 > > Any and all help will be appreciated. > > you can check if udev rule is infact kicking in. use udevadm monitor/test > > > Thanks > > > > > > _______________________________________________ > > yocto mailing list > > yocto@yoctoproject.org > > https://lists.yoctoproject.org/listinfo/yocto > > >
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