On Sun, 29 May 2005, Oliver Neukum wrote:
> Am Sonntag, 29. Mai 2005 07:31 schrieb Arlet Ottens: > > > > While trying to write a linux driver for my USB device on kernel 2.4.30, I > > noticed that doing an usb_unlink_urb on a bulk IN endpoint, and then > > submitting a new urb later, causes the next packet of data on that > > endpoint to be lost. I see the packet on my USB bus analyzer, but I don't > > get the completion callback in the driver. > > > > It appears to be caused by the fact that Linux has performed the data > > toggle on that endpoint even though there was never any data received. > > When the packet comes in, it decides that it has the wrong toggle bit, and > > discards it. > > Which chipset? UHCI, OHCI or EHCI? > UHCI. Arlet ------------------------------------------------------- This SF.Net email is sponsored by Yahoo. Introducing Yahoo! Search Developer Network - Create apps using Yahoo! Search APIs Find out how you can build Yahoo! directly into your own Applications - visit http://developer.yahoo.net/?fr=offad-ysdn-ostg-q22005 _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
