Re: Guidance for a USB microphone that always need a reset to work

On Tue, 2022-10-25 at 22:17 +0200, Hans Petter Selasky wrote:
> On 10/25/22 19:49, Trenton Schulz wrote:
> > Hello,
> > 
> > I have a Blue Yeti USB microphone that I've used for a couple years
> > with FreeBSD. It works fine… eventually.
> > 
> > When I first plug it in, it is recognized, and I can choose it as a
> > recording source, but it refuses to record anything. I'm not sure
> > exactly what the problem is, but mictests.com will complain that
> > the
> > "track is paused" and nothing can unpause it. Maybe it can't be
> > opened?
> > 
> > Regardless, I found that when I had the system booted to Windows
> > and
> > rebooted to FreeBSD, the microphone would work. So, I somehow hit
> > upon
> > the idea of running
> > 
> > usbconfig -d ugenX.Y reset
> > 
> > And surprise, it works with no Windows! It seems that I always need
> > to
> > issue a reset from a cold boot or a plug-in to get the microphone
> > to
> > work. It will never work without the reset.
> > 
> > The reset isn't a big problem, I normally remember to do it when I
> > plug
> > it in, but it does feel like something that could be automated
> > away. I
> > started to make a devd rule to run reset on device attach, but this
> > won't work (with good reason because I saw that this would easily
> > result in an endless loop).
> > 
> > So, I thought maybe there might be some suggestions to maybe make
> > this
> > work on the inital plug-in. Maybe it is a bug or quirk? Is there
> > any
> > additional information anyone would need?
> > 
> > Best regards,
> > 
> 
> Did you do any tracing using usbdump ? Maybe some USB control
> requests 
> are too fast or get stalled.

No, I haven't done any tracing with usbdump. I guess I would start the
dump at to the bus where I plug the microphone in? I'll do this a
little later this week and report back.

> 
> Windows is pretty slow attaching the drivers BTW compared to FreeBSD.
> 

Yes, now that you mention it, I have noticed a couple of times that the
microphone will take a while before it is recognized on Windows.

Best regards,

-- 
Trenton