sony(4) - NetBSD Manual Pages

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SONY(4)                 NetBSD 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/modify-
     ing 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), i386/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.

NetBSD 10.1                     August 25, 2020                    NetBSD 10.1