[Bug 219220] syscalls (ioctls) on USB devices are very slow

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Thu May 11 12:16:49 UTC 2017


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=219220

--- Comment #8 from Hans Petter Selasky <hselasky at FreeBSD.org> ---
The USB log shows that the device has a timeout on one of the USB commands.
That's the reason it is slow!

Wild guess: Try to set: UQ_NO_STRINGS using:

usbconfig -d X.Y add_quirk UQ_NO_STRINGS

--HPS

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