Thomas Sailer (email@example.com)
Sat, 08 May 1999 01:39:36 +0200
Tim Waugh wrote:
> > I'm glad to see that you intend to differentiate ports by their
> > number and not by their IO address. The "IO Address" as unique
> > identification number is going to have problems anyway.
> They're differentiated by virtue of being separate 'struct parport's,
Well yes, most of the time. But how does lp0 find its port?
It enumerates them and then?
Hopefully by number and not by io address
> I don't know about USB; is there no way of aborting when the FIFO has
> data? For instance, if the peripheral just refuses to accept data that's
> in the USB FIFO, what happens?
If it's still in the host controller queues, its less of a problem
(although removing transfer descriptors from a hc queue racelessly
is quite difficult). If it's already in the USB->Parport chip,
then I don't know a method to get the "residue" count.
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This archive was generated by hypermail 2.0b3 on Fri 07 May 1999 - 19:40:48 EDT