From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
To: Jim Paris <jim@jtan.com>
Cc: Thomas Drillich <th@drillich.com>,
linux-hotplug@vger.kernel.org, linux-ide@vger.kernel.org
Subject: Re: ide dvd burner detected as ide-tape
Date: Thu, 09 Oct 2008 18:50:09 +0000 [thread overview]
Message-ID: <200810092050.09576.bzolnier@gmail.com> (raw)
In-Reply-To: <20081009183925.GA24460@psychosis.jim.sh>
On Thursday 09 October 2008, Jim Paris wrote:
> Bartlomiej Zolnierkiewicz wrote:
> > Thanks. Does the following patch help?
> >
> > From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
> > Subject: [PATCH] ide: quirk for LG GH22LP20 DVD burner
> >
> > LG GH22LP20 DVD burner ("HL)DP-ST@V@-RAI CH22HP20") with firmware 1.00
> > reports 0x01 ("Sequential-access device") as the peripheral device type
> > instead of 0x05 ("CD-ROM device").
>
> That looks more like a hardware problem with a flakey bit.
> For example GH22LP20 with bit 2 always cleared = CH22HP20.
> DVD-ROM with bit 2 sometimes cleared = @V@-RAI.
> And the peripheral device type also has bit 2 cleared.
This would explain it nicely (I suspected something along these lines
but failed to see the actual pattern). After all it is very unlikely
to have _that_ broken firmware.
Thanks,
Bart
next prev parent reply other threads:[~2008-10-09 18:50 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-30 23:00 ide dvd burner detected as ide-tape Thomas Drillich
2008-10-01 3:52 ` Kay Sievers
2008-10-03 13:27 ` Thomas Drillich
2008-10-03 13:36 ` Kay Sievers
2008-10-03 17:33 ` Bartlomiej Zolnierkiewicz
2008-10-04 12:12 ` Thomas Drillich
2008-10-08 19:25 ` Bartlomiej Zolnierkiewicz
2008-10-09 14:43 ` Thomas Drillich
2008-10-09 18:13 ` Bartlomiej Zolnierkiewicz
2008-10-09 18:39 ` Jim Paris
2008-10-09 18:50 ` Bartlomiej Zolnierkiewicz [this message]
2008-10-12 22:18 ` Thomas Drillich
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=200810092050.09576.bzolnier@gmail.com \
--to=bzolnier@gmail.com \
--cc=jim@jtan.com \
--cc=linux-hotplug@vger.kernel.org \
--cc=linux-ide@vger.kernel.org \
--cc=th@drillich.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).