'\" t
.\"     Title: z8530_read_port
.\"    Author: 
.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
.\"      Date: January 2017
.\"    Manual: Internal Functions
.\"    Source: Kernel Hackers Manual 4.8.15
.\"  Language: English
.\"
.TH "Z8530_READ_PORT" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "Internal Functions"
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.SH "NAME"
z8530_read_port \- Architecture specific interface function
.SH "SYNOPSIS"
.HP \w'int\ z8530_read_port('u
.BI "int z8530_read_port(unsigned\ long\ " "p" ");"
.SH "ARGUMENTS"
.PP
\fIp\fR
.RS 4
port to read
.RE
.SH "DESCRIPTION"
.PP
Provided port access methods\&. The Comtrol SV11 requires no delays between accesses and uses PC I/O\&. Some drivers may need a 5uS delay
.PP
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\&.
.PP
The caller must hold sufficient locks to avoid violating the horrible 5uS delay rule\&.
.SH "AUTHOR"
.PP
\fBAlan Cox\fR <\&alan@lxorguk.ukuu.org.uk\&>
.RS 4
Author.
.RE
.SH "COPYRIGHT"
.br