---
name: "z8530_read_port"
section: "9"
platform: "linux"
package: "linux-manual-4.9"
version: "4.9.228-1"
release: "Debian 9 (Stretch)"
platforms: ["linux"]
url: "https://new.carta.tech/z8530_read_port"
---

# z8530\_read\_port(9)

Architecture specific interface function

## 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