Date: Sat, 18 Oct 1997 16:06:48 -0700 (PDT) From: mdean <mdean@best.com> To: freebsd-hackers@freebsd.org Subject: Opinions wanted. Message-ID: <Pine.SGI.3.95.971018160306.9841A-100000@shellx.best.com>
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If an 8255 (digital I/O) 8-bit port is opened via open() call by the user as O_RDWR then it becomes an output, should I make all lines high, or all lines low by default. I noticed that the 8255 seems to use low (but i have set them high in my driver because the equipment I use outputs for is activated by active low signal so I don't want it to all be turned on just by opening the device file), what may I ask is more general all high, or all low (in your opinion ofcourse)?
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