On the 17" Intel Core Duo iMac a couple of our USB audio devices get the
USBNotSent2Err on one of their interfaces.
The particular device I'm looking at has three interfaces, two for input
(recording) and one for output (playback). It's only ever one of the input
interfaces that has the error, output is always fine, and the particular
interface changes from run to run. After getting this error (in frStatus
the completion routine) my standard bit of error correction isn't able to
get things going again, though no errors are reported from the pipe->Read()
call that's made after this error is returned.
What's causing this error in the first place? And how should I try to
recover from it?
I'm hoping that this means that my error correction is missing a case, but
I'm not seeing it. I'm hoping someone on this list can tell me more about
what the USBNotSent2Err means and how I should try to recover from it.
These are isoc reads on a USB 1.1 device, Mac OS X 10.4.4 and 10.4.5, Intel
Macs seem to be far more likely (by orders of magnitude) to have this
problem than PPC ones.
Thanks!
--
Mark Cookson
Software Tech Lead
M-Audio, a part of Avid
225 Locust St.
Hudson, WI 54016
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Usb mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/usb/email@hidden
This email sent to email@hidden
