[4140] in linux-scsi channel archive
Re: drivers overlap Adaptec 1542 & Buslogic 542C problems...
daemon@ATHENA.MIT.EDU (Leonard N. Zubkoff)
Tue Jun 16 20:09:52 1998
Date: Tue, 16 Jun 1998 15:05:00 -0700
From: "Leonard N. Zubkoff" <lnz@dandelion.com>
To: smyth@bashful.realminfo.com
CC: linux-scsi@vger.rutgers.edu
In-reply-to: <Pine.LNX.3.96.980616013323.6391B-100000@bashful.realminfo.com>
(message from Scott Smyth on Tue, 16 Jun 1998 01:37:42 -0400 (EDT))
Date: Tue, 16 Jun 1998 01:37:42 -0400 (EDT)
From: Scott Smyth <smyth@bashful.realminfo.com>
In a machine, with two cards: an Adaptec 1542; and a Buslogic 542C;
the Adaptec driver recognizes both cards which causes some kind of
conflict in the device recognition. This occurs even when the
Buslogic driver is inserted first, the Adaptec still conflicts
afterward.
Is there a way to resolve this issue?
Once either driver has recognized the card, the other driver should not be
attempting to access it. The Adaptec driver will recognize the BT-542B and
attempt to use it in a compatibility mode, so the BusLogic driver must always
be given the first shot at recognizing cards. You can probably limit each
driver to only probing a single I/O address either with command line or module
installation arguments, or at worst case by editing the driver sources.
Leonard
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