Date: Tue, 11 Dec 2001 13:37:24 -0700 From: Warner Losh <imp@harmony.village.org> To: Poul-Henning Kamp <phk@critter.freebsd.dk> Cc: Dave Rufino <dr263@hermes.cam.ac.uk>, Alfred Perlstein <bright@mu.org>, freebsd-hackers@FreeBSD.ORG Subject: Re: statefulness in character device drivers Message-ID: <200112112037.fBBKbOM30189@harmony.village.org> In-Reply-To: Your message of "Sat, 08 Dec 2001 10:04:18 %2B0100." <46358.1007802258@critter.freebsd.dk> References: <46358.1007802258@critter.freebsd.dk>
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In message <46358.1007802258@critter.freebsd.dk> Poul-Henning Kamp writes: : In message <Pine.SOL.4.33.0112080900220.17158-100000@red.csi.cam.ac.uk>, Dave R : ufino writes: : : >> Most likely he means a per-open(2) opaque datum that is kept in : >> struct file and passed to the underlying routines. : > : >Sorry, unbelievably bad at explaining myself. Per-open data is what i : >meant. The reason I'm interested is it would make a full nvidia driver : >port quite a bit easier. : : Sorry, I know of no current plans which adress this. : : The issue is non-trivial to fix because we currently don't pass : dup(2) events through the vnode layer. I'm using a cloning device driver for my needs in this area. Warner To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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