Date: Sat, 10 Aug 1996 10:27:25 -0400 (EDT) From: rhh@ct.picker.com (Randall Hopper) To: jeffrey_m._metcalf@ccmail.bms.com (Jeffrey M. Metcalf) Cc: questions@freebsd.org Subject: Re: IDE CDROM drivers Message-ID: <199608101427.KAA12190@elmer.picker.com> In-Reply-To: <9607088395.AA839554088@ccgate0.bms.com> from "Jeffrey M. Metcalf" at Aug 8, 96 01:24:59 pm
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> I am inquiring as to whether or not there have been improvements to
> IDE CDROM device drivers since the 2.1.0 release of FreeBSD. I
> understand that at the time of the 2.1.0 release, the drivers were
> in their alpha testing phase. I have a Matsushita-Panasonic CR581
> 4x speed IDE CDROM at home and the drivers work beautifully with
> it. It is connected as Master device through my secondary IDE
> interface.
>
> My collegue has a SONY 2x speed IDE CDROM and the IDE installation
> program is not detecting his. Are there any updated drivers at
> Walnut Creek that we should download and try? If so, where would
> we find them and documentation on how to incorporate the new drivers
> into the kernel sources? If not, is work ongoing?
Yes, I can confirm that there have been some improvements. On 2.1.0,
I had to hack the probing of wdc1 IDE drives out to get my Sony CDU55E
detected (like your config, my CD-ROM is the only device hanging off wdc1).
I'm now running 2.2-960612-SNAP and my CD-ROM was detected without
modification. Kudos to whoever has been working on the WD & ATAPI code!
Once detected, the drive works well -- no problems at all -- but the
IDE probe timeouts (done before the ATAPI is picked up) are very long. The
only kernel tweak I've made for my CD-ROM is to comment out probing of the
IDE drives on wdc1 so my machine will boot 20-30 seconds faster.
Anyone know if there's a kernel config option to change the IDE probe
timeouts or suppress probing for specific IDE disks?
Randall Hopper
rhh@ct.picker.com
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