January 25, 2008 VALD 4 i386

### NAME

vald - Toshiba Programmable I/O controller

### SYNOPSIS

vald* at acpi?

### DESCRIPTION

Some Toshiba computers have a special I/O controller that handles various interface devices. This special I/O controller is accessed by the ``GHCI'' ACPI method. The vald driver provides some support for it.

The vald driver handles the following hot-keys:

Fn+F5
  Switch between LCD and External Video output.
Fn+F6
  Decrease LCD brightness.
Fn+F7
  Increase LCD brightness.
Fn+F8
  Switch fan (ON/OFF).

The vald driver has only been tested on the Libretto L3 and on the Portege 3440.

### SEE ALSO

acpi(4)

### HISTORY

The vald driver appeared in NetBSD1.6.

### BUGS

vald may have problems with X11 when switching between LCD and External Video output.