On Thu, 18 Nov 2010, Amit Nagal wrote: > > > >> In my case host controller also reports device disconnect in PORTSC > >> register at this error condition also . > >> is it normal behaviour on part of usb host controller to report device > >> disconnect if usb isochoronous > >> transactions fails with such errors such as bad length ? > > > > You've got it backward. It is normal behavior for transactions to fail > > with these errors if the device disconnects. > > > > Alan Stern > > > > > > Actually the usb device is not unplugged at all physically . it is > there on the usb bus . I didn't say "unplugged", I said "disconnects". The device is still plugged in, but it disconnects itself electronically from the bus. > It happens when we proceed to start usb audio streaming for a new song > after stopping currently played song . You need to figure out why your device disconnects itself. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
