Date: Sun, 16 Jul 2000 11:31:50 +0930 From: Greg Lehey <grog@lemis.com> To: Brandon Fosdick <bfoz@glue.umd.edu> Cc: hackers@FreeBSD.ORG Subject: Re: Interrupt Handler? Message-ID: <20000716113149.B57098@wantadilla.lemis.com> In-Reply-To: <396E804C.69F07189@glue.umd.edu> References: <396E804C.69F07189@glue.umd.edu>
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On Thursday, 13 July 2000 at 22:51:56 -0400, Brandon Fosdick wrote: > Where/How does one implement a hardware interrupt handler? I haven't > done this sort of thing since the days of DOS. I imagine its a lot > different in *nix. :) The low-level interrupt handlers are in /usr/src/sys/i386/isa/exception.s. Your device driver attach routine will register its interrupt routine with BUS_SETUP_INTR, which will cause the appropriate interrupt handler to transfer control to your interrupt handler when an interrupt occurs. Greg -- Finger grog@lemis.com for PGP public key See complete headers for address and phone numbers To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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