Re: Keyboard Writing

[stefan.eletzhofer@eletztrick.de]

On Tue, Feb 11, 2003 at 12:01:38PM -0500, James Gibson Fusia wrote:
> I've read through the keyboard driver files (kd.h, keyboard*, pc_keyb*),
> and come to the conclusion that you can't write to the keyboard. Get mode,
> set mode, get leds, set leds, change keymap. But no write to keyboard.
> 
> I need to be able to re-program a keyboard from userspace, and this
> involves sending certain keycodes to the keyboard via port manipulation
> (set write bit, write, wait for write bit clear.. blah blah blah), and no
> manipulation handles.
> 
> My question to you, then, is how do I add definitions for ioctl to be able
> to write to the ps/2 keyboard from user-space? (the #defs for
> KD(GET|SET)LED seem to be arbitrary and not related to 0x64).
> 
> Essentially, I would like to be able to treat the keyboard like a serial
> port. Any docs you can point me at? (Yes, I've checked everything google
> showed me and none of it seemed pertinent to physically writing to the
> keyboard.)
> 
> Please respond directly to me, as I'm a bum and don't want to join the
> kernel-dev list.
> 			-James Gibson Fusia (visyz@cc.gatech.edu)
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Hi, I needed to do the same for one of my customer's embedded board, which has
some battery controller PIC attached to the PS/2 kbd.
I needed to access this PIC, but found no other way but copy the existing
keyboard driver and hack that one.

Cheers,
	Stefan
-- 
Eletztrick Computing - Customized Linux Development
Stefan Eletzhofer
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