atkbdc4
The at keyboard controller interface
Usage
options KBD_RESETDELAY=N options KBD_MAXWAIT=N options KBD_DELAY1=N options KBD_DELAY2=N options KBDIO_DEBUG=N device atkbdc
In /boot/device.hints: hint.atkbdc.0.at="isa" hint.atkbdc.0.port="0x060"
Overview
The keyboard controller atkbdc 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 atkbdc device configured in the system.
Driver configuration
Kernel Configuration Options
The following kernel configuration options can be used to control the atkbdc driver. They may be set in the kernel configuration file (see config(8)).
- KBD_RESETDELAY=X, KBD_MAXWAIT=Y
-
The keyboard driver
atkbdand the pointing device driverpsmmay ask theatkbdcdriver 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 theatkbdcdriver should wait before eventually giving up -- the driver will wait X * 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 X and 5 for Y. - KBD_DELAY1=X, KBD_DELAY2=Y
-
DELAY1 sets the initial key repeat delay to X. The default value is 500ms. DELAY2 sets the key repeat delay to Y. The default value is 100ms.
- KBDIO_DEBUG=N
-
Sets the debug level to N. The default value is zero, which suppresses all debugging output.
Releases
76 releases since FreeBSD 3.1-RELEASE; the text changed 42 times.