| Z8530_WRITE_PORT(9) | Internal Functions | Z8530_WRITE_PORT(9) |
NAME¶
z8530_write_port - Architecture specific interface function
SYNOPSIS¶
void z8530_write_port(unsigned long p, u8 d);
ARGUMENTS¶
p
port to write
d
value to write
DESCRIPTION¶
Write a value to a port with delays if need be. Note that the caller must hold locks to avoid read/writes from other contexts violating the 5uS rule
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.
AUTHOR¶
Alan Cox <alan@lxorguk.ukuu.org.uk>
Author.
COPYRIGHT¶
| June 2024 | Kernel Hackers Manual 3.10 |