KSTDELAY (Set Typematic Delay)

Kernel and Subsystems Technical Reference, Volume 2

Sets typematic delay.

#include <sys/inputdd.h>

int ioctl (FileDescriptor, KSTDELAY, Arg)
int FileDescriptor;
uint *Arg;

The KSTDELAY ioctl subroutine call sets the time, specified in milliseconds, that a key must be held down before it repeats.

When keyboard diagnostics are enabled, the KSTDELAY ioctl subroutine call fails and sets the errno global variable to a value of EBUSY.

FileDescriptor

Specifies the open file descriptor for the keyboard.

Arg

Specifies the address of a value representing the typematic delay. The Arg parameter can be one of the following delay values:

Note: For the 106-keyboard, the delays are 300, 400, 500, and 600 milliseconds. All delays are +/- 20%.

This ioctl subroutine call is part of Base Operating System (BOS) Runtime.

The chhwkbd command.