From: Matthew Wilcox <matthew@wil.cx>
To: Thomas Maguin <T.Maguin@web.de>
Cc: linux-scsi@vger.kernel.org
Subject: Re: Plextor PowerRec for users
Date: Sun, 12 Feb 2006 09:53:27 -0700 [thread overview]
Message-ID: <20060212165327.GG12822@parisc-linux.org> (raw)
In-Reply-To: <200602121718.15200.T.Maguin@web.de>
On Sun, Feb 12, 2006 at 05:18:04PM +0100, Thomas Maguin wrote:
> Blame on me, a typo in the addresses. Changes should be this:
> (patch is on the way)
>
> /usr/src/linux/include/scsi/scsi.h
> +#define PLEXTOR_MODE ?? ?? ?? ?? ?? ?? ?? ?? ??0xe9
> +#define PLEXTOR_PREC_SPEEDS ?? 0xeB
> +#define PLEXTOR_MODE2 ?? ?? ?? ?? ?? ?? ?? ??0xeD
>
> /usr/src/linux/block/scsi/scsi_ioctl.c
> +safe_for_read(PLEXTOR_MODE)
> +safe_for_read(PLEXTOR_PREC_SPEEDS)
> +safe_for_read(PLEXTOR_MODE2)
The trouble is that these are vendor-specific commands. So they're safe
*for plextor devices*, but they may well be unsafe for other vendors.
Given the LG CD-ROM snafu [1], I'd expect people to err on the side
of caution. Sorry.
[1] http://www.dvd-recordable.org/Article911-mode=thread-order0-threshold0.phtml
next prev parent reply other threads:[~2006-02-12 16:53 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-02-12 16:18 Plextor PowerRec for users Thomas Maguin
2006-02-12 16:53 ` Matthew Wilcox [this message]
2006-02-12 18:47 ` Thomas Maguin
[not found] ` <200602121835.44430.T.Maguin@web.de>
2006-02-12 19:10 ` Matthew Wilcox
2006-02-12 19:36 ` Matthias Andree
-- strict thread matches above, loose matches on Subject: below --
2006-02-12 15:13 Thomas Maguin
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