qvm-usb return invalid speed when sys-usb lacks qubes-usb-proxy

[pietrushnic]

Qubes OS version:

R4.0-rc2

Affected TemplateVMs:

dom0, sys-usb

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Steps to reproduce the behavior:

Make sure that qubes-usb-proxy is not installed in sys-usb and run below command in dom0

qvm-usb a <appvm> <usb-device>

Expected behavior:

Information about missing qubes-usb-proxy package or other message with true reason of failure.

Actual behavior:

Confusing message:

Device attach failed: invalid speed received

General notes:

I believe that salt states shall verify if required package is installed on sys-usb.

I thought that there is something wrong with support for my device and I was prepared to debug that by my own, but there is no documentation how to approach that. Digging Python scripts with so many levels of abstraction was also not pleasure. --verbose option didn't helped in that way. I believe there should be some note in documentation how to approach debugging of USB related problems. Or maybe I missing something and there is some debugging documentation out there ?

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Related issues:

[andrewdavidwong]

This appears to be a duplicate of #3026. If you believe this is not really a duplicate, please leave a comment briefly explaining why. We'll be happy to take another look and, if appropriate, reopen this issue. Thank you.

[andrewdavidwong]

This appears to be a duplicate of #3026. If you believe this is not really a duplicate, please leave a comment briefly explaining why. We'll be happy to take another look and, if appropriate, reopen this issue. Thank you.