Tim Waugh (tim@cyberelk.demon.co.uk)
Thu, 13 May 1999 18:40:00 +0100 (GMT)
On Thu, 13 May 1999, Philip Blundell wrote:
> If you can think of a better way to select PS2 mode (data drivers off)
> then no. Arguably change_mode was never the right interface for that
> anyway.
I think parport_frob_control (port, PARPORT_CONTROL_DIRECTION, x) is okay
for that. The 'control' register may or may not actually exist, and where
it doesn't, its functionality can mostly be emulated.
There's currently no way for a high-level driver to know that the data
drivers _can_ be turned off, though. I guess that's another port->modes
thing (PARPORT_MODE_TRISTATE?).
Tim.
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This archive was generated by hypermail 2.0b3 on Thu 13 May 1999 - 13:55:08 EDT