Re: PC keyboard rate/delay

Alan Cox (alan@lxorguk.ukuu.org.uk)
Tue, 12 Jun 2001 17:02:39 +0100 (BST)


> In file include/linux/kd.h was declared KDKBDREP ioctl number
> to tune up keyboard rate/delay with struct kbd_repeat.
> But in 2.4.x kernel there is only m68k version for that.
> I wrote some code for implement this feature on x86 machines.
> Gzipped and uuencoded patch for kernel 2.4.5 is attached.
> To setup keyboard rate/delay on x86 you should use code like that:
>
> struct kbd_repeat kbd_rep={
> 1000, /* delay in ms */
> 30 /* repeat rate in cps */
> };
> ioctl(0,KDKBDREP,&kbd_rep);
>
> After that ioctl kbd_rep is filled with previous values.
> I hope it will be useful for someone.

You must have been reading my mind. Yesterday I traced at least one X11
hang down to the kernel and X server both frobbing with the port at the same
time and crashing the microcontroller on my PC110.

Alan

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