Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!unmvax!deimos.cis.ksu.edu!uxc!uxc.cso.uiuc.edu!ux1.cso.uiuc.edu!osiris.cso.uiuc.edu!dpgerdes
From: dpgerdes@osiris.cso.uiuc.edu
Newsgroups: comp.unix.microport
Subject: Re: com3 & com4 -> tty2 & tty3
Message-ID: <42700008@osiris.cso.uiuc.edu>
Date: 24 Apr 89 15:06:00 GMT
References: <243@kralc.UUCP>
Lines: 16
Nf-ID: #R:kralc.UUCP:243:osiris.cso.uiuc.edu:42700008:000:843
Nf-From: osiris.cso.uiuc.edu!dpgerdes    Apr 24 10:06:00 1989


/* Written  9:14 pm  Apr 19, 1989 by plocher%sally@Sun.COM in osiris.cso.uiuc.edu:comp.unix.microport */
In article <243@kralc.UUCP> sly@kralc.UUCP (sly) writes:
>   I have a 286 box running uport 2.3.0 and I would like to know how to
>modify the kernel to enable irq2 and irq5 for serial service.  Under dos

You can not use IRQ2 for anything under Unix - it is already used by the
system.  The asy driver should be able to use IRQ5 (I may be wrong here)
by the use of ttypattch.  The asy driver is hardwired to use a certain set 
of IRQ lines and I don't have the sources anymore to look it up.  Look
at thhe output of nm on the asy.o driver found in /usr/linkkit/lib*.a
you will find routines of the name asyXintr where x is the IRQ number
of the supported lines.   

   -John
/* End of text from osiris.cso.uiuc.edu:comp.unix.microport */