On Fri, Mar 30, 2001 at 09:37:04AM -0500, Andrew Hogue wrote:
> There's only one thing that doesn't touch the data lines and that is
> to check the Status pin.
Right. Just blatting away away at the data pins as fast as possible
doesn't seem particularly useful..
> I guess this might cause a problem since it will introduce another
> mode switch but maybe 1 or 2 mode switches will be more efficient
> than 10 or whatever I have now... :)
If the status pin happens to be nAck, then you can configure parport
to use interrupts and then use select() in the user-space driver to
wait for the interrupt to happen, rather than polling the status port
lots of times.
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This archive was generated by hypermail 2b29 : Fri Mar 30 2001 - 10:03:17 EST