On Mon, Jul 19, 1999 at 07:37:02PM +1000, Bruce Evans wrote:
>
>>You misunderstood what Bruce wrote. PLIP has always been broken. It
>>used to be possible to hack around the brokenness by setting the
>>interrupt mask to net instead of tty. With newbus, this hack is no
>>longer possible (it was never correct anyway; it broke printing).

Or we shall consider changing isa_compat.c if we choose splnet for lpt.

>
>Or by statically configuring SLIP (which forced tty = net), or maybe
>by dynamically configuring PPP.  The tty = net hack went away with
>old-bus, so SLIP is broken in much the same way as PLIP.
>
>>The problem with PLIP is that it tries to do splnet stuff in at
>>spltty. If you force the parallell port driver to run at splnet, PLIP
>>works but you get panics when you print because it tries to do spltty
>>stuff at splnet.
>
>Possible quick fix (hack): change all the spltty()'s in lpt.c to
>splnet()'s.  lpt isn't a tty driver; it just abuses spltty().  Abusing
>splnet() instead should work OK for lpt and fix if_plip.

This seems good until the intr stuff handle dynamic update of a interrupt spl.
Is there some work in progress on that?

>
>Bruce
>
>
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