From: Alan Cox <alan@redhat.com>
To: dmo@osdl.org (Dave Olien)
Cc: hch@infradead.org (Christoph Hellwig),
marcelo@conectiva.com.br, alan@redhat.com,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] DAC960 open with O_NONBLOCK
Date: Mon, 21 Apr 2003 16:14:44 -0400 (EDT) [thread overview]
Message-ID: <200304212014.h3LKEiE00854@devserv.devel.redhat.com> (raw)
In-Reply-To: <20030421190111.GA27126@osdl.org> from "Dave Olien" at Ebr 21, 2003 12:01:11
> John Kamp has run across a libhd applcation from Suse that hit this bug.
> It's some kind of hardware detection application. It opens devices with
> O_NONBLOCK. But, it doesn't in fact use the DAC960 pass-through commands.
It should be checking major/minor first - rightfully or wrongly (I'd
favour wrongly) open has side effects on multiple devices.
> The difficulty is that the Mylex application is available only in binary
> form. Mylex is very secretive about its controller commands.
> It would be nice to be able to create a library that an application
> could call to perform high-level operations, and the library would
> construct the pass-through commands and pass them to the driver.
> Then, anyone could write their own GUI.
Or someone could just stick a command dumper in the driver. Thats how I
wrote ps and a few other utils for my aacraid 8)
next prev parent reply other threads:[~2003-04-21 20:02 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-04-21 17:24 Dave Olien
2003-04-21 17:37 ` Christoph Hellwig
2003-04-21 19:01 ` Dave Olien
2003-04-21 19:04 ` Christoph Hellwig
2003-04-21 20:14 ` Alan Cox [this message]
2003-04-21 21:35 ` Dave Olien
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