[6016] in linux-scsi channel archive
Re: problem using both AIC-7880 and Adaptec 2940U/W together
daemon@ATHENA.MIT.EDU (John Interrante)
Wed Mar 3 08:15:04 1999
To: Henrik Johansson <henrik@lcdata.se>
Cc: linux-scsi@vger.rutgers.edu, dledford@redhat.com
From: John Interrante <interran@crd.ge.com>
Date: 03 Mar 1999 08:03:18 -0500
In-Reply-To: Henrik Johansson's message of "Wed, 3 Mar 1999 08:51:29 -0100 (GMT+1)"
Henrik Johansson <henrik@lcdata.se> writes:
> I think the easiest way to solve this particular problem would be
> to just disable the 2940U/W BIOS and compile the 2940U/W card as a
> module.
I'm not sure how this would help. Both the AIC-7880 and the Adaptec
2940U/W require the same driver (aic7xxx). So how would "compiling
the driver as a module" help? The driver will have to be compiled
into the kernel or else loaded using initrd before we can even mount
the root filesystem. Will disabling the 2940U/W BIOS prevent the
aic7xxx driver from recognizing that the card is present, so that the
AIC-7880 will always be known as "scsi0?" If so, then how do we
"insert" the 2940U/W later on and get the driver to create a "scsi1"
bus for it?
I was thinking that it might be necessary to hack the driver source
code to force the AIC-7880 to be recognized before the 2940U/W, but I
wanted to find out first if there was an easier way than editing the
source code.
John
--
John Interrante, Computer Scientist, Information Technology Laboratory
GE Corporate Research & Development, Niskayuna, New York
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