Manual Pages  — ACPI_HP

Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):

acpi_hp_load="YES"

The main purpose of this driver is to provide an interface, accessible via sysctl(8), devd(8) and devfs(8), through which applications can determine and change the status of various laptop components and BIOS settings.

system	"ACPI"
subsystem
	"HP"
type	The source of the event in the ACPI namespace. The value depends on the model.
notify	Event code (see below).

Event codes:

0xc0	WLAN on air status changed to 0 (not on air)
0xc1	WLAN on air status changed to 1 (on air)
0xd0	Bluetooth on air status changed to 0 (not on air)
0xd1	Bluetooth on air status changed to 1 (on air)
0xe0	WWAN on air status changed to 0 (not on air)
0xe1	WWAN on air status changed to 1 (on air)

Defaults for these sysctls can be set in sysctl.conf(5).

notify 0 {
        match "system"          "ACPI";
        match "subsystem"       "HP";
        match "notify"          "0xc0";
        action                  "ifconfig em0 up";
};

notify 0 {
        match "system"          "ACPI";
        match "subsystem"       "HP";
        match "notify"          "0xc1";
        action                  "ifconfig em0 down";
};

Enable the ambient light sensor:

sysctl dev.acpi_hp.0.als_enabled=1

Enable Bluetooth:

sysctl dev.acpi_hp.0.bt_enabled=1

Get BIOS settings:

cat /dev/hpcmi

Serial Port                                Disable
Infrared Port                              Enable
Parallel Port                              Disable
Flash Media Reader                         Disable
USB Ports including Express Card slot      Enable
1394 Port                                  Enable
Cardbus Slot                               Disable
Express Card Slot                          Disable
(...)

Set maximum detail level for /dev/hpcmi output:

sysctl dev.acpi_hp.0.cmi_detail=7