SYNOPSIS

options KBD_RESETDELAY=N options KBD_MAXWAIT=N options KBDIO_DEBUG=N device atkbdc

In /boot/device.hints hint.atkbdc.0.at=isa hint.atkbdc.0.port=0x060

DESCRIPTION

The keyboard controller provides I/O services for the AT keyboard and PS/2 mouse style pointing devices. This controller is required for the keyboard driver atkbd and the PS/2 pointing device driver psm

There can be only one device configured in the system.

DRIVER CONFIGURATION

Kernel Configuration Options

The following kernel configuration options can be used to control the driver. They may be set in the kernel configuration file (see config(8)).

KBD_RESETDELAY=X , KBD_MAXWAIT=Y

The keyboard driver atkbd and the pointing device driver psm may ask the driver to reset these devices during the boot process. It sometimes takes a long time before these devices respond to the reset command. These options control how long the driver should wait before eventually giving up -- the driver will wait Fa X * Fa Y msecs at most. If the drivers seem unable to detect devices, you may want to increase these values. The default values are 200 msec for Fa X and 5 for Fa Y .

KBDIO_DEBUG=N

Sets the debug level to Fa N . The default value is zero, which suppresses all debugging output.

HISTORY

The driver first appeared in Fx 3.1 . It is based on the kbdio module in Fx 2.2 .

AUTHORS

The kbdio module, the driver and this manual page were written by An Kazutaka Yokota Aq [email protected] .