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nomadicME
n00b
Joined: 24 Mar 2012
Posts: 46
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 Posted: Thu Apr 10, 2014 11:25 pm Post subject: logitech webcam not recognized by custom kernel |
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I have a webcam that I have not used in a few years, that I am having trouble getting recognized.
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$ lsusb
Bus 001 Device 002: ID 13d3:5702 IMC Networks UVC VGA Webcam
Bus 002 Device 002: ID 046d:08d7 Logitech, Inc. QuickCam Communicate STX
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
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The first device listed is the built-in webcam which is working fine. The second device is the problem.
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$ ls /dev/video*
crw-rw----+ 1 root video 81, 0 2014-04-10 16:05 /dev/video0
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video0 is the built-in webcam. I was expecting to see /dev/video1 as well.
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$ grep -i V4L /usr/src/linux/.config
CONFIG_VIDEO_V4L2=y
# CONFIG_VIDEO_V4L2_INT_DEVICE is not set
# CONFIG_V4L_PLATFORM_DRIVERS is not set
# CONFIG_V4L_MEM2MEM_DRIVERS is not set
# CONFIG_V4L_TEST_DRIVERS is not set
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$ grep -i CONFIG_USB_VIDEO_CLASS /usr/src/linux/.config
CONFIG_USB_VIDEO_CLASS=y
CONFIG_USB_VIDEO_CLASS_INPUT_EVDEV=y
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$ grep -i MEDIA_CAMERA_SUPPORT /usr/src/linux/.config
CONFIG_MEDIA_CAMERA_SUPPORT=y
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$ grep -i GSPCA /usr/src/linux/.config
CONFIG_USB_GSPCA=y
# CONFIG_USB_GSPCA_BENQ is not set
# CONFIG_USB_GSPCA_CONEX is not set
# CONFIG_USB_GSPCA_CPIA1 is not set
...
none of the other gspca drivers are set
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Here is the tail end of dmesg after plugging in webcam:
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...
[ 2057.460066] usb 2-2: new full-speed USB device number 3 using uhci_hcd
[ 2057.655139] usb 2-2: New USB device found, idVendor=046d, idProduct=08d7
[ 2057.655147] usb 2-2: New USB device strings: Mfr=0, Product=0, SerialNumber=0
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The kernel version is 3.10.17. I've thought maybe the device is broken, but I have 3 identical logitech webcams and none of them are working. Any ideas why this device is not being recognized?
UPDATE:
This appears to be the culprit (from /var/log/Xorg.0.log):
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[ 27.422] (II) config/udev: Adding input device USB2.0 UVC VGA WebCam (/dev/input/event7)
[ 27.422] (**) USB2.0 UVC VGA WebCam: Applying InputClass "evdev keyboard catchall"
[ 27.422] (II) Using input driver 'evdev' for 'USB2.0 UVC VGA WebCam'
[ 27.422] (**) USB2.0 UVC VGA WebCam: always reports core events
[ 27.423] (**) evdev: USB2.0 UVC VGA WebCam: Device: "/dev/input/event7"
[ 27.423] (--) evdev: USB2.0 UVC VGA WebCam: Vendor 0x13d3 Product 0x5702
[ 27.423] (--) evdev: USB2.0 UVC VGA WebCam: Found keys
[ 27.423] (II) evdev: USB2.0 UVC VGA WebCam: Configuring as keyboard
[ 27.423] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:1d.7/usb1/1-6/1-6:1.0/input/input7/event7"
[ 27.423] (II) XINPUT: Adding extended input device "USB2.0 UVC VGA WebCam" (type: KEYBOARD, id 10)
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How do I keep this webcam from falling into "evdev keyboard catchall"? Thanks. |
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chithanh
Developer
Joined: 05 Aug 2006
Posts: 2158
Location: Berlin, Germany
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| Posted: Fri Apr 11, 2014 2:46 pm Post subject: |
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Xorg log is not related to your problem. It just recognizes the camera button/slider as keyboard.
grepping in the kernel source for the USB ID of your camera results in
| Code: | | drivers/media/usb/gspca/zc3xx.c: {USB_DEVICE(0x046d, 0x08d7)}, |
So presumably enabling USB_GSPCA_ZC3XX may help. |
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nomadicME
n00b
Joined: 24 Mar 2012
Posts: 46
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| Posted: Thu Apr 17, 2014 9:01 pm Post subject: |
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| Thank you chithanh, that did the trick. Come to think of it, the last time I used these cameras I was still using Kubuntu. I switched to Gentoo a couple of years ago. So that explains why I never had to specify that specific driver in the past, it was already built into their monster kernel. I also did not know that you could look up the USB ID in the kernel documentation. Thank you. |
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Sigma Kappa
n00b
Joined: 04 Mar 2012
Posts: 45
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| Posted: Fri Jun 27, 2014 8:25 am Post subject: |
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| Enabling GSPCA you say... But my kernel config does not have any keyword with the "GSPCA" substring. menuconfig does not have them under "USB Devices". What should I do to enable GSPCA then? |
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khayyam
Watchman
Joined: 07 Jun 2012
Posts: 6227
Location: Room 101
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| Posted: Fri Jun 27, 2014 11:21 am Post subject: |
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| Sigma Kappa wrote: | | Enabling GSPCA you say... But my kernel config does not have any keyword with the "GSPCA" substring. menuconfig does not have them under "USB Devices". What should I do to enable GSPCA then? |
Sigma Kappa ... the Linux Kernel Driver Database has it depend on CONFIG_VIDEO_V4L2, I asume this is disabled and so the menu item isn't listed.
best ... khay |
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Sigma Kappa
n00b
Joined: 04 Mar 2012
Posts: 45
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| Posted: Fri Jun 27, 2014 2:31 pm Post subject: |
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Thanks khay, now I seem to have enabled thoise GSPCAs. This is dmesg out out after plugging in the device
| Code: | [ 100.009884] usb 2-1.8: New USB device found, idVendor=046d, idProduct=0819
[ 100.009887] usb 2-1.8: New USB device strings: Mfr=0, Product=0, SerialNumber=2
[ 100.009889] usb 2-1.8: SerialNumber: 1EE29FC0
[ 100.010009] usb 2-1.8: usb_probe_device
[ 100.010013] usb 2-1.8: configuration #1 chosen from 1 choice
[ 100.010107] usb 2-1.8: adding 2-1.8:1.0 (config #1, interface 0)
[ 100.010168] usb 2-1.8: adding 2-1.8:1.1 (config #1, interface 1)
[ 100.010193] usb 2-1.8: adding 2-1.8:1.2 (config #1, interface 2)
[ 100.010216] usb 2-1.8: adding 2-1.8:1.3 (config #1, interface 3)
[ 100.010254] hub 2-1:1.0: state 7 ports 8 chg 0000 evt 0100 |
My kernel version is 3.10.25, and the config is at http://pastebin.com/Vkr8m4Bk (Thanks for pastebinit!)
lsmod yields nothing, although I tried both compiling the gspca drivers as modules and as built-in.[/code] |
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chithanh
Developer
Joined: 05 Aug 2006
Posts: 2158
Location: Berlin, Germany
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| Posted: Fri Jun 27, 2014 2:40 pm Post subject: |
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| Code: | | idVendor=046d, idProduct=0819 |
That is a UVC camera, not GSPCA. Set CONFIG_USB_VIDEO_CLASS=y in your kernel configuration. |
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Sigma Kappa
n00b
Joined: 04 Mar 2012
Posts: 45
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| Posted: Fri Jun 27, 2014 2:52 pm Post subject: |
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| Thank you all! Enabling UVC did the trick. |
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