[Linux-parport] ASYNC I/O Reason: Reverse transfers are _slow_

Dirk Jagdmann jagdmann at gmail.com
Mon Jan 25 15:23:42 EST 2010

Hallo Johann,

in what mode did you hook up and talk to the microcontroller? EPP and
ECP modes should provide adequate performance, but if you "invent"
your own protocol, or trigger every byte/nibble with your own function
calls to set the parallel port lines, it will always be slow.

---> Dirk Jagdmann
----> http://cubic.org/~doj
-----> http://llg.cubic.org

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