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Z8530_WRITE_PORT(9) Internal Functions Z8530_WRITE_PORT(9)
NAME
z8530_write_port - Architecture specific interface function
SYNOPSIS
void z8530_write_port(unsigned long p, u8 d);
ARGUMENTS
p
port to write
d
value to write
DESCRIPTION
Write a value to a port with delays if need be. Note that the caller
must hold locks to avoid read/writes from other contexts violating the
5uS rule
In the longer term this should become an architecture specific section
so that this can become a generic driver interface for all platforms.
For now we only handle PC I/O ports with or without the dread 5uS
sanity delay.
AUTHOR
Alan Cox <alan@lxorguk.ukuu.org.uk>
Author.
COPYRIGHT
Kernel Hackers Manual 2.6. November 2013 Z8530_WRITE_PORT(9)
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