[Bug 253232] ulpt possible regression in 12.2

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Thu Feb 4 16:48:33 UTC 2021


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=253232

--- Comment #3 from Hans Petter Selasky <hselasky at FreeBSD.org> ---
Hi,

It might be related to the use of USB clear endpoint stall, prior to
transmission.

You can comment that out in the ulpt driver in the kernel. Look for clear
stall.

If that happens to be the case, your USB device's firmware is not fully USB
class compliant ...

--HPS

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