acpi_panasonic man page on FreeBSD

Man page or keyword search:  
man Server   9747 pages
apropos Keyword Search (all sections)
Output format
FreeBSD logo
[printable version]

ACPI_PANASONIC(4)      BSD/i386 Kernel Interfaces Manual     ACPI_PANASONIC(4)

     acpi_panasonic — ACPI hotkey driver for Panasonic laptops

     To compile this driver into the kernel, place the following line in your
     kernel configuration file:

	   device acpi_panasonic

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


     The acpi_panasonic driver enables such hotkey facilities of various Pana‐
     sonic laptops as changing LCD brightness, controlling mixer volumes,
     entering sleep or suspended state and so on.  On the following models it
     is reported to work: Let's note (or Toughbook, outside Japan) CF-R1N, CF-
     R2A and CF-R3.  It may also work on other models as well.

     The driver consists of three functionalities.  The first is to detect
     hotkey events and take corresponding actions, which include changing LCD
     luminance and speaker mute state.	The second role is to notify occur‐
     rences of the event by way of devctl(4) and eventually to devd(8).	 The
     third and last is to provide a way to adjust LCD brightness and sound
     mute state via sysctl(8).

     There are 9 hotkeys available on the supported hardwares:

	   Fn+F1   Make LCD backlight darker.
	   Fn+F2   Make LCD backlight brighter.
	   Fn+F3   Switch video output between LCD and CRT.  Not supported by
		   the acpi_panasonic driver.
	   Fn+F4   Toggle muting the speaker.
	   Fn+F5   Turn the mixer volume down.
	   Fn+F6   Turn the mixer volume up.
	   Fn+F7   Enter suspend-to-RAM state.
	   Fn+F9   Show battery status.
	   Fn+F10  Enter suspend-to-disk state.

     Actions are automatically taken within the driver for Fn+F1, Fn+F2 and
     Fn+F4.  For the other events such as mixer control and showing battery
     status, devd(8) should take the role as described below.

   devd(8) Events
     When notified to devd(8), the hotkey event provides the following infor‐

	   system	 "ACPI"
	   subsystem	 "Panasonic"
	   type		 The source of the event in ACPI namespace.  The value
			 depends on the model but typically "\_SB_.HKEY".
	   notify	 Event code (see below).

     Event codes to be generated are assigned as follows:

	   0x81-0x86, 0x89
			 Fn+F<n> pressed.  0x81 corresponds to Fn+F1, 0x82
			 corresponds to Fn+F2, and so on.

	   0x01-0x07, 0x09, 0x1a
			 Fn+F<n> released.  0x01 corresponds to Fn+F1, 0x02
			 corresponds to Fn+F2, and so on.

     The following MIBs are available:
	     The maximum level of brightness.  The value is read only and
	     automatically set according to hardware model.
	     The minimum level of brightness.  The value is read only and
	     automatically set according to hardware model.
	     Current brightness level of the LCD (read-write).	The value
	     ranges from to
	     A read-write boolean flag to control whether to mute the speaker.
	     The value 1 means to mute and 0 not.

     acpi(4), devd.conf(5), devd(8), sysctl(8)

     The acpi_panasonic driver first appeared in FreeBSD 5.3.

     The acpi_panasonic driver and this manual page were written by OGAWA
     Takaya ⟨⟩ and TAKAHASHI Yoshihiro

BSD			      September 17, 2009			   BSD

List of man pages available for FreeBSD

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
Vote for polarhome
Free Shell Accounts :: the biggest list on the net