I would suggest sending this to Lexicon. I doubt they'd do anything about it, but they might want to know. Lexicon has long been an effects/audio processing company, so their first entry into the world of USB may have been a learning experience for their engineers. They may have used the same code from their Omega, which I believe might have 8 interfaces, and just changed the number of interfaces without actually renumbering them. On 4/18/07, Frank Barknecht <fbar@xxxxxxxxxxx> wrote: > Looks as if the Lambda is violating the USB specification. So far I've > only seen this with M-Audio soundcards like the infamous Quattro. > This happens, if device developers aren't able to count as good as a > 5-year old. ;) I would hide under a rock if I was with Lexicon's USB > departement. > > Some background: If you look at the output of "lsusb -v" you will see > entries like: "bNumInterfaces 4" which numbers the interfaces on a > device. (Interfaces are things like midi port, microphone, line-out > etc.) A bit below you will see the "Interface Descriptor"s, they are > supposed to have "bInterfaceNumber"s starting from 0 up to > bNumInterfaces - 1 according to the USB specification. If interfaces > are numbered in a way, that violates this, the kernel warns about > this. In your case, bNumInterfaces probably is 6, but Lexicon counts > from 0 to 5 like this: 0, 1, 2, 4, 6, 7 where 3 and 5 are missing, and > 6 and 7 are illegal. > > I guess, Lexicon has never read the USB spec and they definitely never > did a compliancy test. Does the card work anyways? > > Ciao > -- > Frank Barknecht _ ______footils.org_ __goto10.org__ ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
