z8530_read_port(9)
NAME
z8530_read_port - Architecture specific interface function
SYNOPSIS
int z8530_read_port(unsigned long p);
ARGUMENTS
- p
- port to read
DESCRIPTION
Provided port access methods. The Comtrol SV11 requires no delays
between accesses and uses PC I/O. Some drivers may need a 5uS delay
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.
The caller must hold sufficient locks to avoid violating the horrible
5uS delay rule.
AUTHOR
- Alan Cox <alan@redhat.com>
- Author.