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