Date: Sat, 30 May 1998 21:44:02 -0400 From: "Gary Palmer" <gpalmer@FreeBSD.ORG> To: "Jose M. Alcaide" <jose@we.lc.ehu.es> Cc: freebsd-scsi@FreeBSD.ORG Subject: Re: AHC: "cheksum error" reading SEEPROM with Iwill PIILS mb Message-ID: <25690.896579042@gjp.erols.com> In-Reply-To: Your message of "Thu, 28 May 1998 19:20:56 %2B0200." <356D9CF8.1E7667F5@we.lc.ehu.es>
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"Jose M. Alcaide" wrote in message ID
<356D9CF8.1E7667F5@we.lc.ehu.es>:
> When the AHC driver tries to read the 7880's SEEPROM, the operation
> fails with a "cheksum error". I'm afraid that the 7880 chip on my
> PIILS motherboard is different (perhaps another version?): for
> example, I cannot choose the termination type using the Adaptec
> SCSI BIOS ("High ON/Low ON", "High ON/Low Off"...); instead, I can
> only select "Enable" or "Disable". However, the "cheksum error"
> trying to read the 7880's SEEPROM does not prevent the AHC driver
> from working properly. Until now, I can use both the SCSI disk and
> CD-ROM without any problem.
The SEEPROM (Serial EEPROM) is something that Adaptec PCI cards use
to store their configuration on. However, on-board controllers don't
have an SEEPROM as they normally have the settings in the BIOS. Hence,
the SEEPROM checksum fails because there isn't one :)
The AHC driver has sensible enough defaults that it should Just Work (TM)
when an SEEPROM is not found.
Gary
--
Gary Palmer FreeBSD Core Team Member
FreeBSD: Turning PC's into workstations. See http://www.FreeBSD.ORG/ for info
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