SONY(4) |
Kernel Interfaces Manual |
SONY(4) |
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)
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.