From owner-freebsd-hardware  Wed May 21 01:21:54 1997
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Date: Wed, 21 May 1997 18:17:15 +1000
From: Bruce Evans <bde@zeta.org.au>
Message-Id: <199705210817.SAA13146@godzilla.zeta.org.au>
To: bde@zeta.org.au, phk@dk.tfs.com
Subject: Re: isa bus and boca multiport boards
Cc: brett@lariat.org, HARDWARE@FreeBSD.ORG, rberndt@nething.com,
        WELCHDW@wofford.edu
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>Would anything be gained from having a #ifdef that makes the driver
>understand 16550A only ?

A little.  Most of the gains can be obtained by just attaching a UART-
specific interrupt handler.  My version has the configuration of the
interrupt handler moved out of the config file so that the driver can
configure it better.  I only use this to avoid going through siointr()
to siointr1() in the non-COM_MULTIPORT case so far.

Bruce