1Z8530_READ_PORT(9)            Internal Functions            Z8530_READ_PORT(9)
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NAME

6       z8530_read_port - Architecture specific interface function
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SYNOPSIS

9       int z8530_read_port(unsigned long p);
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ARGUMENTS

12       p
13           port to read
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DESCRIPTION

16       Provided port access methods. The Comtrol SV11 requires no delays
17       between accesses and uses PC I/O. Some drivers may need a 5uS delay
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19       In the longer term this should become an architecture specific section
20       so that this can become a generic driver interface for all platforms.
21       For now we only handle PC I/O ports with or without the dread 5uS
22       sanity delay.
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24       The caller must hold sufficient locks to avoid violating the horrible
25       5uS delay rule.
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AUTHOR

28       Alan Cox <alan@lxorguk.ukuu.org.uk>
29           Author.
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32Kernel Hackers Manual 3.10         June 2019                Z8530_READ_PORT(9)
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