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Built-in webcam was not initialized

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cute curtis:
Hi, I can't make my webcam work which is Silicon Motion WebCam SC-0311139N for SAMSUNG N150 Plus. I have downloaded and put onboot the v412-utils.tcz and manually loading usbutils.tcz. By the way this netbook has no dedicated FN keys to manually enable/disable the webcam.


--- Code: ---tc@box:~$ dmesg | grep uvc
uvcvideo: Found UVC 1.00 device WebCam SC-0311139N (2232:1020)
uvcvideo 1-8:1.0: Entity type for entity Processing 3 was not initialized!
uvcvideo 1-8:1.0: Entity type for entity Extension 2 was not initialized!
uvcvideo 1-8:1.0: Entity type for entity Camera 1 was not initialized!
usbcore: registered new interface driver uvcvideo
tc@box:~$ tce-load -i usbutils.tcz
libusb.tcz: OK
usbutils.tcz: OK
tc@box:~$ dmesg | grep uvc
uvcvideo: Found UVC 1.00 device WebCam SC-0311139N (2232:1020)
uvcvideo 1-8:1.0: Entity type for entity Processing 3 was not initialized!
uvcvideo 1-8:1.0: Entity type for entity Extension 2 was not initialized!
uvcvideo 1-8:1.0: Entity type for entity Camera 1 was not initialized!
usbcore: registered new interface driver uvcvideo
tc@box:~$ cd /sys/bus/pci/drivers/ehci_hcd
sh: cd: can't cd to /sys/bus/pci/drivers/ehci_hcd: No such file or directory
tc@box:~$ lsusb
Bus 001 Device 002: ID 2232:1020 Silicon Motion
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 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 003 Device 002: ID 413c:301a Dell Computer Corp.
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
tc@box:~$

--- End code ---

P.S. I have also found this kernel driver for the said hardware

http://80.87.195.87/index.php?id=usb:2232-1006

Juanito:
What does this give:
--- Code: ---$ v4l2-ctl --list-devices
--- End code ---

Rich:
Hi cute curtis

--- Quote from: cute curtis on December 28, 2020, 03:01:51 AM --- ... P.S. I have also found this kernel driver for the said hardware

http://80.87.195.87/index.php?id=usb:2232-1006
--- End quote ---
Right driver, wrong device. You have the 1020:
http://80.87.195.87/index.php?id=usb:2232-1020

cute curtis:
@juanito

--- Code: ---tc@box:~$ v4l2-ctl --list-devices
WebCam SC-0311139N (usb-0000:00:1d.7-8):
        /dev/video0
        /dev/video1

--- End code ---

@Rich
ok, thanks for the reference, how should I compile this kernel driver?

Juanito:
It doesn't look like you need an additional kernel driver - your webcam should be ready to go at /dev/video0 and/or /dev/video1.

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