centos man page for z8530_read_port

Z8530_READ_PORT(9)						Internal Functions						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@lxorguk.ukuu.org.uk>
	   Author.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014							Z8530_READ_PORT(9)