In Documentation/usb/error-codes.txt it says: -ENOENT URB was synchronously unlinked by usb_unlink_urb
-ECONNRESET URB was asynchronously unlinked by usb_unlink_urb What is the difference between a synchronously and an asynchronously unlink ? My understanding from the answer to a previous question is that if you have the situation where 2 URBS are sent to the HCD: 1) URB 4K URB_SHORT_NOT_OK 2) URB 8K URB_SHORT_NOT_OK If then only 1K of data is sent back from the Device (short packet) then the HCD would complete the 4K URB with: actual_length=1024 status = -EREMOTEIO The client driver should then call usb_unlink_urb() for the 8K URB which would then complete this URB with: status = -ECONNRESET So I assume that would be an example of an asynchronously unlink...although I'm not entirely sure I understand whats 'asynchronous' about it. I don't think I understand what 'synchronous ' & 'asynchronous' mean in this context. Thanks for any help dom ------------------------------------------------------------------------- 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/ _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
