Re: Steinberg UR44 uaudio device

[Eivind Nicolay Evensen <eivinde%terraplane.org@localhost>]

Den Fri, 10 Jun 2022 21:25:48 -0400
skrev "David H. Gutteridge" <david%gutteridge.ca@localhost>:

> On Thu, 9 Jun 2022 at 17:43:02 +0200, Eivind Nicolay Evensen wrote:
> > > On 6/8/22 16:50, Eivind Nicolay Evensen wrote:  
> > > > If I read that right, Martin's guess that this is a v2 device is
> > > > right.    
> > > 
> > > Hi,
> > > 
> > > If you compile the kernel with "options USB_DEBUG", there will be
> > > a "sysctl hw.usb.uaudio.debug=16", which will print this in
> > > dmesg.  
> > 
> > 
> > So then, this confirms it it seems:  
> [...]
> 
> To add to what others have said, a general rule as I've understood it
> is that if a device offers > 24/96 for ADC/DAC, it will be expecting
> USB Audio 2.0, at least for processing at those higher rates. Some
> devices are switchable between 1.0 and 2.0; some actually have a
> physical switch to select which USB Audio class should be used. I've
> never seen a UR44, much less operated one, but a glance at the manual
> refers to a switch on the rear labelled "CC Mode". This is for "Class
> Compliant" mode, which implies it will work with generic OS drivers.
> Have you tried flipping that switch to "on"? (The manual is a bit
> light on specific technical details.)

Yes, this was all done with the "class compliant" switch set to "on".


> 
> Regards,
> 
> Dave
> 




-- 
Eivind Nicolay Evensen