On Thu, 21 Aug 2003, Matthias Bruestle wrote:

> Mahlzeit
> 
> 
> On Thu, Aug 21, 2003 at 03:01:42PM -0400, Alan Stern wrote:
> > I'm stumped.  And there is no open/close handling in UHCI.  Could it be 
> > that your program does something different before the first request and 
> > between the first & second?
> 
> The program is run twice and does nothing different.
> 
> Is it possible to get more detailed information about the hardware state?

I don't think there _is_ any more program-accessible hardware state other
than what gets dumped in /proc/driver/uhci.  The entire state consists of
a handful of registers (command, status, interrupt, frame number, frame
list base address, start-of-frame modify, and the port status & control)
plus the schedule.

Have you made a detailed comparison of the contents of this file (while 
waiting for the second interrupt URB) between 2.4 and 2.6?

Alan Stern



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