On Mon, 31 Jan 2000, Guest section DW wrote:
>
> My ancient keyboard docs contain warnings like
>
> "MCA systems with a type 1 controller must wait at least 7 usec
> after bit 0 (status read from 0x64) goes from 0 to 1 before
> reading the data from port 0x60."
>
> Probably irrelevant these days, but since you mention timing issues...
One thing to try might be to just assume that the keyboard controller is a
slow device (it is), and use "inb_p()" instead of "inb()" etc for the
definition of kbd_read_input() and friends. Just edit the file
include/asm-i386/keyboard.h
if you have a keyboard problem, and replace the inb's and "inb_p"s and the
outb's with "outb_p"s.
It will give you only one us rather than seven, but seven us is just so
incredibly slow that I can't imagine that it should matter these days.
Linus
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This archive was generated by hypermail 2b29 : Mon Jan 31 2000 - 21:00:29 EST