On Sun, 15 Apr 2007, John Wojnaroski wrote: > Hi Alan, > > Thanks for working your way through my mess. > > I was trying a numer of ideas last night and things got a little convoluted. > > You've answered my question regards the CRC I sent before I saw your > reply. > > Think I know what the chip needs in the way of a msg data packet, but > probably the problem lays in my being able to provide the correct > parameters to form the urb and send it to the correct endpoint. > > It is a little frustrating learning a new topic and trying to ask the > right questions. Thank you for help and patience.
I have found the most useful reference to be the official USB 2.0 spec, available from www.usb.org. Particularly chapters 5, 8, and 9. If you can post a more-or-less complete Windows USB trace, we ought to be able to interpret it for you. You can always use freely available programs like USB SnoopyPro (from sourceforge) to get such a trace. Alan Stern ------------------------------------------------------------------------- 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
