Date: Tue, 08 Oct 2002 16:57:05 +0200 From: Poul-Henning Kamp <phk@critter.freebsd.dk> To: "David Christensen" <dchrist@cox.net> Cc: arch@FreeBSD.ORG Subject: Re: Device Driver Overview Message-ID: <28318.1034089025@critter.freebsd.dk> In-Reply-To: Your message of "Tue, 08 Oct 2002 07:34:12 PDT." <B1154A80CE56844B9EA4F77FAD2BA951F5B7@hobbes.drc.dhs.org>
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In message <B1154A80CE56844B9EA4F77FAD2BA951F5B7@hobbes.drc.dhs.org>, "David Ch ristensen" writes: >1) After completing step 6, is the disk usable (accessible through its >device node)? >2) In the cdevsw structure for the drives, what do the physread and >physwrite entries mean? They point to generic routines which will do some tedious work and call the driver back trhough the strategy routine. >3) How do actual read/write requests make it to the device driver? Which is the answer to this question: though the strategy routine. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message
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