Webcam detected in my own wsl2 but still no /dev/video0

[Katzeee]

On kernel 5.10.102.1
I can find my cameras by lsusb and dmesg but there is no /dev/video*

xac-lenovo@Xac-lenovo:~$ lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 1b3f:2247 Generalplus Technology Inc. GENERAL WEBCAM
Bus 001 Device 002: ID 174f:2459 Syntek Integrated Camera
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

[   39.808193] usb 1-1: new high-speed USB device number 2 using vhci_hcd
[   39.958332] usb 1-1: SetAddress Request (2) to port 0
[   39.998173] usb 1-1: New USB device found, idVendor=174f, idProduct=2459, bcdDevice= 0.08
[   39.998175] usb 1-1: New USB device strings: Mfr=3, Product=1, SerialNumber=2
[   39.998175] usb 1-1: Product: Integrated Camera
[   39.998176] usb 1-1: Manufacturer:
[   39.998176] usb 1-1: SerialNumber: 0001
[   42.276715] vhci_hcd vhci_hcd.0: pdev(0) rhport(1) sockfd(3)
[   42.276717] vhci_hcd vhci_hcd.0: devid(131082) speed(3) speed_str(high-speed)
[   42.276740] vhci_hcd vhci_hcd.0: Device attached
[   42.618364] usb 1-2: new high-speed USB device number 3 using vhci_hcd
[   42.768229] usb 1-2: SetAddress Request (3) to port 1
[   42.800316] usb 1-2: config 1 interface 0 altsetting 0 endpoint 0x83 has an invalid bInterval 32, changing to 9
[   42.801390] usb 1-2: New USB device found, idVendor=1b3f, idProduct=2247, bcdDevice= 1.00
[   42.801392] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[   42.801393] usb 1-2: Product: GENERAL WEBCAM
[   42.801394] usb 1-2: Manufacturer: GENERAL
[   49.139456] hv_balloon: Max. dynamic memory size: 3986 MB

I compiled my own WSL followed by the instructions in https://github.com/dorssel/usbipd-win/wiki/WSL-support#building-your-own-usbip-enabled-wsl-2-kernel. and #257

xac-lenovo@Xac-lenovo:/usr/src/4.19.43-microsoft-standard$ sudo make modules_install -j 12
  INSTALL drivers/hid/usbhid/usbhid.ko
  INSTALL drivers/media/common/videobuf2/videobuf2-common.ko
  INSTALL drivers/media/common/videobuf2/videobuf2-dma-contig.ko
  INSTALL drivers/media/common/videobuf2/videobuf2-memops.ko
  INSTALL drivers/media/common/videobuf2/videobuf2-v4l2.ko
  INSTALL drivers/media/common/videobuf2/videobuf2-vmalloc.ko
  INSTALL drivers/media/dvb-core/dvb-core.ko
  INSTALL drivers/media/mc/mc.ko
  INSTALL drivers/media/platform/aspeed-video.ko
  INSTALL drivers/media/platform/cadence/cdns-csi2rx.ko
  INSTALL drivers/media/platform/cadence/cdns-csi2tx.ko
  INSTALL drivers/media/usb/gspca/gspca_main.ko
  INSTALL drivers/media/usb/gspca/gspca_stk014.ko
  INSTALL drivers/media/usb/gspca/gspca_stk1135.ko
  INSTALL drivers/media/usb/pwc/pwc.ko
  INSTALL drivers/media/usb/stkwebcam/stkwebcam.ko
  INSTALL drivers/media/usb/uvc/uvcvideo.ko
  INSTALL drivers/media/v4l2-core/v4l2-dv-timings.ko
  INSTALL drivers/media/v4l2-core/v4l2-fwnode.ko
  INSTALL drivers/media/v4l2-core/videodev.ko
  INSTALL drivers/net/mii.ko
  INSTALL drivers/net/usb/cdc_ether.ko
  INSTALL drivers/net/usb/cdc_ncm.ko
  INSTALL drivers/net/usb/rndis_host.ko
  INSTALL drivers/net/usb/usbnet.ko
  INSTALL drivers/usb/class/cdc-acm.ko
  INSTALL drivers/usb/core/usbcore.ko
  INSTALL drivers/usb/common/usb-common.ko
  INSTALL drivers/usb/phy/phy-generic.ko
  INSTALL drivers/usb/serial/ch341.ko
  INSTALL drivers/usb/serial/cp210x.ko
  INSTALL drivers/usb/serial/ftdi_sio.ko
  INSTALL drivers/usb/serial/usbserial.ko
  INSTALL drivers/usb/storage/usb-storage.ko
  INSTALL drivers/usb/usbip/usbip-core.ko
  INSTALL drivers/usb/usbip/vhci-hcd.ko
  DEPMOD  5.10.102.1-microsoft-standard-WSL2+

xac-lenovo@Xac-lenovo:/usr/src/4.19.43-microsoft-standard$ sudo make install -j12
sh ./arch/x86/boot/install.sh 5.10.102.1-microsoft-standard-WSL2+ arch/x86/boot/bzImage \
        System.map "/boot"
run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 5.10.102.1-microsoft-standard-WSL2+ /boot/vmlinuz-5.10.102.1-microsoft-standard-WSL2+
run-parts: executing /etc/kernel/postinst.d/initramfs-tools 5.10.102.1-microsoft-standard-WSL2+ /boot/vmlinuz-5.10.102.1-microsoft-standard-WSL2+
update-initramfs: Generating /boot/initrd.img-5.10.102.1-microsoft-standard-WSL2+
W: Couldn't identify type of root file system for fsck hook
run-parts: executing /etc/kernel/postinst.d/unattended-upgrades 5.10.102.1-microsoft-standard-WSL2+ /boot/vmlinuz-5.10.102.1-microsoft-standard-WSL2+
run-parts: executing /etc/kernel/postinst.d/update-notifier 5.10.102.1-microsoft-standard-WSL2+ /boot/vmlinuz-5.10.102.1-microsoft-standard-WSL2+
run-parts: executing /etc/kernel/postinst.d/xx-update-initrd-links 5.10.102.1-microsoft-standard-WSL2+ /boot/vmlinuz-5.10.102.1-microsoft-standard-WSL2+

I don't know how to do to fix it.
please advise.

[dorssel]

@Katzeee

/usr/src/4.19.43-microsoft-standard

Are you compiling the right kernel version? Usually, WSL kernels are built monolithic (i.e. no modules, but everything compiled in: 'Y' instead of 'M'). Maybe you need to manually modprobe the correct modules? Or maybe you need to (re)start udev?

[Katzeee]

It is the driver's problem, I didn't choose the right driver. After I selected the right driver, I can find /dev/video0.

BTW, i can't use it by cheese, though there is /dev/video0 . But by this way i can:

ffplay -f video4linux2 -input_format mjpeg -framerate 30 -video_size 640*480 /dev/video0

Thank you for your help.

[1184197761]

It is the driver's problem, I didn't choose the right driver. After I selected the right driver, I can find ./dev/video0

BTW, i can't use it by , though there is . But by this way i can:cheese``/dev/video0

ffplay -f video4linux2 -input_format mjpeg -framerate 30 -video_size 640*480 /dev/video0

Thank you for your help.

Can you tell me which driver to select? Thanks!

[Katzeee]

It is the driver's problem, I didn't choose the right driver. After I selected the right driver, I can find ./dev/video0
BTW, i can't use it by cheese , though there is/dev/video0 . But by this way i can:

ffplay -f video4linux2 -input_format mjpeg -framerate 30 -video_size 640*480 /dev/video0

Thank you for your help.

Can you tell me which driver to select? Thanks!

I selected following drivers for usb,

Device Drivers->USB support[*]
Device Drivers->USB support->Support for Host-side USB[M]
Device Drivers->USB support->Enable USB persist by default[*]
Device Drivers->USB support->USB Modem (CDC ACM) support[M]
Device Drivers->USB support->USB Mass Storage support[M]
Device Drivers->USB support->USB/IP support[M]
Device Drivers->USB support->VHCI hcd[M]
Device Drivers->USB support->VHCI hcd->Number of ports per USB/IP virtual host controller(8)
Device Drivers->USB support->Number of USB/IP virtual host controllers(1)
Device Drivers->USB support->USB Serial Converter support[M]
Device Drivers->USB support->USB Serial Converter support->USB FTDI Single Port Serial Driver[M]
Device Drivers->USB support->USB Physical Layer drivers->NOP USB Transceiver Driver[M]
Device Drivers->Network device support->USB Network Adapters[M]
Device Drivers->Network device support->USB Network Adapters->[Deselect everything you don't care about]
Device Drivers->Network device support->USB Network Adapters->Multi-purpose USB Networking Framework[M]
Device Drivers->Network device support->USB Network Adapters->CDC Ethernet support (smart devices such as cable modems)[M]
Device Drivers->Network device support->USB Network Adapters->Multi-purpose USB Networking Framework->Host for RNDIS and ActiveSync devices[M]

and these are for webcam,

Device Drivers->Multimedia support[M]
Device Drivers->Multimedia support[M]->Media core support->Video4Linux core[M]
Device Drivers->Multimedia support[M]->Media core support->Media Controller API[*]
Device Drivers->Multimedia support[M]->Media drivers->Media USB Adapters[*]
Device Drivers->Multimedia support[M]->Media drivers->Media USB Adapters[*]->USB Video Class(UVC)[M]
Device Drivers->Multimedia support[M]->Media drivers->Media USB Adapters[*]->UVC input evnets device support[*]

These are enough for me, but if you still can't use the cam, you should try select more drivers under Multimedia support.

For more details, see https://github.com/Katzeee/ReadingNotes/blob/master/about-programing/wsl2-using-usb.md

[1184197761]

Glad to hear from you, and your sincere advice helped me a lot, thanks again!

It is the driver's problem, I didn't choose the right driver. After I selected the right driver, I can find ./dev/video0
BTW, i can't use it by cheese , though there is/dev/video0 . But by this way i can:

ffplay -f video4linux2 -input_format mjpeg -framerate 30 -video_size 640*480 /dev/video0

Thank you for your help.

Can you tell me which driver to select? Thanks!

I selected following drivers for usb,

Device Drivers->USB support[*]
Device Drivers->USB support->Support for Host-side USB[M]
Device Drivers->USB support->Enable USB persist by default[*]
Device Drivers->USB support->USB Modem (CDC ACM) support[M]
Device Drivers->USB support->USB Mass Storage support[M]
Device Drivers->USB support->USB/IP support[M]
Device Drivers->USB support->VHCI hcd[M]
Device Drivers->USB support->VHCI hcd->Number of ports per USB/IP virtual host controller(8)
Device Drivers->USB support->Number of USB/IP virtual host controllers(1)
Device Drivers->USB support->USB Serial Converter support[M]
Device Drivers->USB support->USB Serial Converter support->USB FTDI Single Port Serial Driver[M]
Device Drivers->USB support->USB Physical Layer drivers->NOP USB Transceiver Driver[M]
Device Drivers->Network device support->USB Network Adapters[M]
Device Drivers->Network device support->USB Network Adapters->[Deselect everything you don't care about]
Device Drivers->Network device support->USB Network Adapters->Multi-purpose USB Networking Framework[M]
Device Drivers->Network device support->USB Network Adapters->CDC Ethernet support (smart devices such as cable modems)[M]
Device Drivers->Network device support->USB Network Adapters->Multi-purpose USB Networking Framework->Host for RNDIS and ActiveSync devices[M]

and these are for webcam,

Device Drivers->Multimedia support[M]
Device Drivers->Multimedia support[M]->Media core support->Video4Linux core[M]
Device Drivers->Multimedia support[M]->Media core support->Media Controller API[*]
Device Drivers->Multimedia support[M]->Media drivers->Media USB Adapters[*]
Device Drivers->Multimedia support[M]->Media drivers->Media USB Adapters[*]->USB Video Class(UVC)[M]
Device Drivers->Multimedia support[M]->Media drivers->Media USB Adapters[*]->UVC input evnets device support[*]

These are enough for me, but if you still can't use the cam, you should try select more drivers under Multimedia support.

For more details, see https://github.com/Katzeee/ReadingNotes/blob/master/about-programing/wsl2-using-usb.md

Glad to hear from you, and your sincere advice helped me a lot, thanks again!

[EstelleChabanel]

It is the driver's problem, I didn't choose the right driver. After I selected the right driver, I can find ./dev/video0
BTW, i can't use it by cheese , though there is/dev/video0 . But by this way i can:

ffplay -f video4linux2 -input_format mjpeg -framerate 30 -video_size 640*480 /dev/video0

Thank you for your help.

Can you tell me which driver to select? Thanks!

I selected following drivers for usb,

Device Drivers->USB support[*]
Device Drivers->USB support->Support for Host-side USB[M]
Device Drivers->USB support->Enable USB persist by default[*]
Device Drivers->USB support->USB Modem (CDC ACM) support[M]
Device Drivers->USB support->USB Mass Storage support[M]
Device Drivers->USB support->USB/IP support[M]
Device Drivers->USB support->VHCI hcd[M]
Device Drivers->USB support->VHCI hcd->Number of ports per USB/IP virtual host controller(8)
Device Drivers->USB support->Number of USB/IP virtual host controllers(1)
Device Drivers->USB support->USB Serial Converter support[M]
Device Drivers->USB support->USB Serial Converter support->USB FTDI Single Port Serial Driver[M]
Device Drivers->USB support->USB Physical Layer drivers->NOP USB Transceiver Driver[M]
Device Drivers->Network device support->USB Network Adapters[M]
Device Drivers->Network device support->USB Network Adapters->[Deselect everything you don't care about]
Device Drivers->Network device support->USB Network Adapters->Multi-purpose USB Networking Framework[M]
Device Drivers->Network device support->USB Network Adapters->CDC Ethernet support (smart devices such as cable modems)[M]
Device Drivers->Network device support->USB Network Adapters->Multi-purpose USB Networking Framework->Host for RNDIS and ActiveSync devices[M]

and these are for webcam,

Device Drivers->Multimedia support[M]
Device Drivers->Multimedia support[M]->Media core support->Video4Linux core[M]
Device Drivers->Multimedia support[M]->Media core support->Media Controller API[*]
Device Drivers->Multimedia support[M]->Media drivers->Media USB Adapters[*]
Device Drivers->Multimedia support[M]->Media drivers->Media USB Adapters[*]->USB Video Class(UVC)[M]
Device Drivers->Multimedia support[M]->Media drivers->Media USB Adapters[*]->UVC input evnets device support[*]

These are enough for me, but if you still can't use the cam, you should try select more drivers under Multimedia support.

For more details, see https://github.com/Katzeee/ReadingNotes/blob/master/about-programing/wsl2-using-usb.md

Hi,

I have the same problem. I don't understand how/where do you select the driver ?

Thank you

[Katzeee]

It is the driver's problem, I didn't choose the right driver. After I selected the right driver, I can find ./dev/video0
BTW, i can't use it by cheese , though there is/dev/video0 . But by this way i can:

ffplay -f video4linux2 -input_format mjpeg -framerate 30 -video_size 640*480 /dev/video0

Thank you for your help.

Can you tell me which driver to select? Thanks!

I selected following drivers for usb,

Device Drivers->USB support[*]
Device Drivers->USB support->Support for Host-side USB[M]
Device Drivers->USB support->Enable USB persist by default[*]
Device Drivers->USB support->USB Modem (CDC ACM) support[M]
Device Drivers->USB support->USB Mass Storage support[M]
Device Drivers->USB support->USB/IP support[M]
Device Drivers->USB support->VHCI hcd[M]
Device Drivers->USB support->VHCI hcd->Number of ports per USB/IP virtual host controller(8)
Device Drivers->USB support->Number of USB/IP virtual host controllers(1)
Device Drivers->USB support->USB Serial Converter support[M]
Device Drivers->USB support->USB Serial Converter support->USB FTDI Single Port Serial Driver[M]
Device Drivers->USB support->USB Physical Layer drivers->NOP USB Transceiver Driver[M]
Device Drivers->Network device support->USB Network Adapters[M]
Device Drivers->Network device support->USB Network Adapters->[Deselect everything you don't care about]
Device Drivers->Network device support->USB Network Adapters->Multi-purpose USB Networking Framework[M]
Device Drivers->Network device support->USB Network Adapters->CDC Ethernet support (smart devices such as cable modems)[M]
Device Drivers->Network device support->USB Network Adapters->Multi-purpose USB Networking Framework->Host for RNDIS and ActiveSync devices[M]

and these are for webcam,

Device Drivers->Multimedia support[M]
Device Drivers->Multimedia support[M]->Media core support->Video4Linux core[M]
Device Drivers->Multimedia support[M]->Media core support->Media Controller API[*]
Device Drivers->Multimedia support[M]->Media drivers->Media USB Adapters[*]
Device Drivers->Multimedia support[M]->Media drivers->Media USB Adapters[*]->USB Video Class(UVC)[M]
Device Drivers->Multimedia support[M]->Media drivers->Media USB Adapters[*]->UVC input evnets device support[*]

These are enough for me, but if you still can't use the cam, you should try select more drivers under Multimedia support.
For more details, see https://github.com/Katzeee/ReadingNotes/blob/master/about-programing/wsl2-using-usb.md

Hi,

I have the same problem. I don't understand how/where do you select the driver ?

Thank you

https://gist.github.com/cerebrate/d40c89d3fa89594e1b1538b2ce9d2720
This may help you, run ‘make menuconfig’ then you would see the options.