NAME

sony — Sony Miscellaneous Controller

SYNOPSIS

sony* at acpi?

DESCRIPTION

Some Sony notebook computers have a controller that handles various built-in devices. The sony driver provides support for accessing/modifying the settings of some of these devices via the sysctl(8) interface.

The following sysctl(8) variables are available:

hw.sony0.brt [R/W]

Controls current LCD brightness. Range [0-8].

hw.sony0.pbr [R/W]

Controls power on LCD brightness. Range [0-8].

hw.sony0.cdp [R/W]

Controls CD power.

hw.sony0.pid [R/O]

Unknown

hw.sony0.ctr [R/W]

Unknown

hw.sony0.pcr [R/W]

Unknown

hw.sony0.cmi [R/W]

Unknown

hw.sony0.ams [R/W]

Audio control (mute when 0)

hw.sony0.hke [R/O]

Indicates a Host Key Event. Bits are set when an event occurs and cleared when this value is read. The following table describes the bit set for each button pressed:

0x1000

S1 button

0x0800

S2 button

0x0200

Fn + F10 (magnify)

0x0100

Mute button

0x0020

Fn + F12 (suspend to disk)

0x0010

Fn + F7 (LCD/external monitor)

0x0008

Fn + F6 (brighter backlight)

0x0004

Fn + F5 (darker backlight)

0x0002

Fn + F4 (volume up)

0x0001

Fn + F3 (volume down)

SEE ALSO

acpi(4), spic(4)

HISTORY

The sony driver appeared in NetBSD 4.0.

AUTHORS

Sami Kantoluoto for the original driver and manual information. Christos Zoulas for cleaning up the driver and this manual page.

BUGS

• The sony driver just parses integer values from the acpi(4) tree. It could be more intelligent and parse other controls.
• The sysctl(8) interface is not great. The names of the sysctl(8) tree are not self-explanatory.
• No validity checks are performed on the user input. Playing with random values and/or unknown controls can harm your machine.
• The name of the driver is too generic.