Is this hi-speed, full-speed, or full-speed through a hi-speed hub?
What is your device doing on the bus? NAKing?
If I were to guess, it sounds like your driver issues large reads, and your device only sporadically sends data, and doesn't use short packets to terminate your reads. The Timeout is the only way you are completing the reads with data.
If an abort is recovering your pipe, then perhaps your problem is a data error. Again, you need to see exactly what the device is doing on the bus using a bus analyzer.
David Ferguson USB Software Team
At 9:30 AM -0700 7/20/05, Mike Smith wrote: >Hi list, > >What's the recommended recovery mechanism after a (bulk) read >transaction timeouts? > >If I don't do anything after getting KIOUSBTransactionTimeout and >issue another read req!
uest, the
transaction will hang and won't even >timeout. I have to abort the pipe to be able to read again. Any >ideas how to handle this problem? > >Thanks, > >Mike > >__________________________________________________ >Do You Yahoo!? >Tired of spam? Yahoo! Mail has the best spam protection around >http://mail.yahoo.com > > _______________________________________________ >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
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