Date: Tue, 10 Feb 2009 13:42:02 +0200 From: Andriy Gapon <avg@icyb.net.ua> To: freebsd-hackers@FreeBSD.org Subject: superio and "shared" io port Message-ID: <4991680A.5010905@icyb.net.ua>
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Here I am with Super I/O question again. There is a certain Super I/O that is configured to use the same port for entering/exiting configuration mode as the one that is used by fdc in the same Super I/O. This is port 0x3f0. I guess the hardware works by examining a value written to this port and forwarding non-magic accesses to the fdc. I wonder what is the best way to handle this double-use of an io port with newbus isa code. -- Andriy Gapon
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