Re: kern/55856: uaudio gets device timeout on C-Media USB sound device

[Brian Buhrow <buhrow%nfbcal.org@localhost>]

The following reply was made to PR kern/55856; it has been noted by GNATS.

From: Brian Buhrow <buhrow%nfbcal.org@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: buhrow%nfbcal.org@localhost
Subject: Re: kern/55856: uaudio gets device timeout on C-Media USB sound device
Date: Tue, 12 Jan 2021 10:06:27 -0800

 	hello.  Here's some more data on this issue.  The problem appears to be specific to the
 xhci(4) driver.  Specifically, if I boot an older machine with NetBSD-9.1 with an uchi(4) USB
 chip in it, the uaudio driver works fine with the C-Media USB audio device.  Of course, it's
 also an I386 machine, not an amd64 machine but I hope that isn't the difference that
 demonstrates the problem.  
 So, I will now investigate potential issues with the xhci(4) driver.
 -thanks
 -Brian