In message <slrnd5j7r1.ina.martijnb@atlas.ipv6.stack.nl>, Martijn van Buul writ
es:
>It occurred to me that Zbigniew Baniewski wrote in gmane.os.netbsd.general:
>> Is the /dev/lpa0 in some way "tied" only to "parallel port-driven" printers?
>
>Yes, very, as the manpage explains:
>
>(from man 4 lpt)
>
>FILES
>     /dev/lpt0    first interrupt-driven parallel port device
>     /dev/lpa0    first polled parallel port device
>
>So, yes, lpa is very tied to the parrallel port device, and you really
>shouldn't use it to begin with, if you can avoid doing so.  You really don't
>want a polled driver if you can afford an interrupt driven one.
>
My experience is just the opposite -- I found that polling drivers 
worked much better.

		--Prof. Steven M. Bellovin, http://www.cs.columbia.edu/~smb