[alsa-devel] USB Quirks for Boss JS-8

[Clemens Ladisch]

Daniel Mack wrote:
> On Fri, Mar 18, 2011 at 6:56 PM, Keith A. Milner
> <maillist at superlative.org> wrote:
> > Hi,
> > I'm looking at developing a quirk for the Boss JS-8. The lsusb is as follows:
> 
> [...]
> 
> > I wasn't entirely sure about the quirk syntax as the two interfaces are at EP
> > 4 and EP5. Does this mean I need to ignore the (non-existant) lower
> > interfaces? Here's what I came up with:
> 
> Does this quirk help anything?

Certainly not; endpoint numbers are not interface numbers.  Try with
audio interfaces 0 and 1 and MIDI interface 2.

> I'm just asking because looking at the descriptors,it's not clear
> whether this device does comply to any standard interfaces at all.

Many Roland devices work this way.   (And I'd expect any USB audio
developer to instantly recognize descriptors like "0b 24 02 01 02 04 18
01 44 ac 00". ;-)


Regards,
Clemens