Usb device descriptor read error 110 on pi zero w

[daneskildsen]

Hi there! I have followed the description for this project but I am experiencing a strange problem. I am using a Pi zero w and it is connected to my laptop which is running ubuntu. This is the output of sudo dmesg -w (from the host)

[20734.381420] usb 1-2: new full-speed USB device number 12 using xhci_hcd [20749.909000] usb 1-2: device descriptor read/64, error -110 [20765.524782] usb 1-2: device descriptor read/64, error -110 [20765.764747] usb 1-2: new full-speed USB device number 13 using xhci_hcd [20781.388423] usb 1-2: device descriptor read/64, error -110 [20797.008059] usb 1-2: device descriptor read/64, error -110 [20797.120080] usb usb1-port2: attempt power cycle [20797.780028] usb 1-2: new full-speed USB device number 14 using xhci_hcd [20803.020035] xhci_hcd 0000:00:14.0: Timeout while waiting for setup device command [20808.399879] xhci_hcd 0000:00:14.0: Timeout while waiting for setup device command [20808.611859] usb 1-2: device not accepting address 14, error -62 [20808.739876] usb 1-2: new full-speed USB device number 15 using xhci_hcd [20813.771821] xhci_hcd 0000:00:14.0: Timeout while waiting for setup device command [20819.151710] xhci_hcd 0000:00:14.0: Timeout while waiting for setup device command [20819.359637] usb 1-2: device not accepting address 15, error -62 [20819.359803] usb usb1-port2: unable to enumerate USB device

I don't know how to debug this. Any suggestions?

[imp1sh]

I'm also experiencing this problem.

[ArbenP]

I too am facing this problem, on Windows 10, saying: Unknown USB Device (Device Descriptor Request Failed)

Windows has stopped this device because it has reported problems. (Code 43)
A request for the USB device descriptor failed.

I ran sudo systemctl status piwebcam on the pi, and got Oct 09 12:12:52 pizero piwebcam[431]: Failed to open /dev/video0: Permission denied Oct 09 12:12:52 pizero piwebcam[433]: Failed to open /dev/video0: Permission denied Oct 09 12:12:52 pizero piwebcam[434]: Failed to open /dev/video0: Permission denied Oct 09 12:12:53 pizero sudo[436]: pi : PWD=/home/pi/uvc-gadget ; USER=root ; COMMAND=/home/pi/uvc-gadget/u> Oct 09 12:12:53 pizero sudo[436]: pam_unix(sudo:session): session opened for user root(uid=0) by (uid=1000) Oct 09 12:12:53 pizero piwebcam[442]: V4L2: /dev/video0 is no video capture device Oct 09 12:12:53 pizero piwebcam[442]: UVC: device open failed: No such file or directory (2). Oct 09 12:12:53 pizero sudo[436]: pam_unix(sudo:session): session closed for user root Oct 09 12:12:53 pizero systemd[1]: piwebcam.service: Main process exited, code=exited, status=1/FAILURE Oct 09 12:12:53 pizero systemd[1]: piwebcam.service: Failed with result 'exit-code'.

[ArbenP]

Update: I have enabled Legacy Camera in raspi-config, and now it shows up on my pc, but as soon as I open the camera in any app, it works for one frame, then the pi "unplugs" from the pc and no longer shows up unable to connect again until I manually unplug then replug the raspberry pi zero w. Here's a screen recording of that in action. https://streamable.com/91b86x Edit: didn't notice that sample text until now whoops

[daneskildsen]

@ArbenP Hi there Arben! Thanks for working on this. I still have this problem and I have not been able to solve it. So I hope that you find a solution and post it here because I would love to use the camera in OBS / Windows. Regards, Dan

[daneskildsen]

Hey @geerlingguy Have you seen that we are still struggling with this problem, any input would be appreciated. Regards, Dan

[ArbenP]

Tried Raspberry Pi OS Legacy (Debian Buster) instead of the latest (Bullseye), no difference, only works for one frame then disconnects.

Edit: Found this https://github.com/showmewebcam/showmewebcam and it works perfectly as an alternative to this.

[stale[bot]]

This issue has been marked 'stale' due to lack of recent activity. If there is no further activity, the issue will be closed in another 30 days. Thank you for your contribution!

Please read this blog post to see the reasons why I mark issues as stale.

[Deovi]

I'm having the same issue

[stale[bot]]

This issue is no longer marked for closure.

[kevleyski]

Hi - just flagging I'm seeing similar too and keen to resolve I'm powering the Raspberry Pi4 + PoE HAT over Ethernet to ensure have enough current - the device seems to be working fine against MacOS hosts (in fact the MacBookPro puts out enough current that doesn't need PoE in my case)

But when I enable UVC with Windows 10 on a regular Lenovo desktop + standard Windows install I'm getting that Code 43 (request for USB device descriptor failed) issue too

[WillYouth]

same issues here on RPi zero W and raspberry pi camera module v3. Any help is greatly appreciated!!!

[heLiiOs-eNg]

Are there any solutions? I still have this issue.

[debloper]

I just faced this issue, and was able to solve it. Was hard to find the root cause, but here it is...

The uvc-gadget/piwebcam script (invoked by the piwebcam service) tries to set the source and sink video devices, but fails, because the device IDs that it has hardcoded (i.e. /dev/video0 as source and /dev/video1 as the sink) may not necessarily be the case with the system you're trying to set it up.

For my case, the sink was needed to be set to /dev/video2 instead.

You can verify if this is the case by checking service piwebcam status and reading its log (or, by manually checking the output of sudo /home/pi/uvc-gadget/uvc-gadget -f1 -s1 -r1 -u /dev/video1 -v /dev/video0).

To know which device to set output to, in that case, run:

# list all the video devices
v4l2-ctl --list-devices
# will show something like this:
# 3f980000.usb (gadget.0):
#        /dev/video2
#
# unicam (platform:3f801000.csi):
#         /dev/video0
#         /dev/video1
#         /dev/media3

# check the capabilities of the devices
v4l2-ctl -d /dev/video2 --all
# make sure the Device Caps show Video Output as listed capability, like this:
#         Device Caps      : 0x04200002
#                Video Output    <----- Make sure this is not "Metadata Capture" (if so, check next device)
#                Streaming
#                Extended Pix Format

Once you've found the device that can work as the sink, update that device to the script (instead of /dev/video1), save the script and reboot.

After restarting, the service should start without hiccup (do verify that) and the USB should enumerate as well.

Hope this helps.

[github-actions[bot]]

This issue has been marked 'stale' due to lack of recent activity. If there is no further activity, the issue will be closed in another 30 days. Thank you for your contribution!

Please read this blog post to see the reasons why I mark issues as stale.

[github-actions[bot]]

This issue has been closed due to inactivity. If you feel this is in error, please reopen the issue or file a new issue with the relevant details.