z8530_read_port (9) - Linux Man Pages

z8530_read_port: 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 [at] lxorguk.ukuu.org.uk>

Author.

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