On Mon, 10 Apr 2000, Drew Northup wrote:
> Also, and I don't know how pertinent this may be....,
> don't the bidirectional parallel ports use both sets
> of pins (the + bias as well as the - bias) on the
> printer cable? I don't know how well this is
> supported by the current abstraction drivers in linux
> (I'm sure that it is...., it is just more a matter of
> how).
With newer 2.0 and 2.2 kernels /dev/lp0 is readable. With 2.4 kernels,
there will be a /dev/parport0 device. There is code available for 2.2
kernels, but I don't think anyone's using it yet.
To find out more about /dev/parport0 (ppdev), see
<URL:http://people.redhat.com/twaugh/parport/> and look at the
'Documentation' bit.
Tim.
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