HSCTRL(4)              FreeBSD Kernel Interfaces Manual              HSCTRL(4)

NAME
     hsctrl - HID system controls driver

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

           device hsctrl
           device hid
           device hidbus
           device hidmap
           device evdev

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

           hsctrl_load="YES"

DESCRIPTION
     The hsctrl driver provides support for HID system controls most often
     used as "Power off/Sleep keys" found on many keyboards.

     The /dev/input/event* device presents the consumer page controls as a
     evdev type device.

SYSCTL VARIABLES
     The following variable is available as both sysctl(8) variable and
     loader(8) tunable:

     dev.hsctrl.X.debug
             Debug output level, where 0 is debugging disabled and larger
             values increase debug message verbosity.  Default is 0.

     It default value is set with loader(8) tunable:

     hw.hid.hsctrl.debug

FILES
     /dev/input/event*  input event device node.

SEE ALSO
     iichid(4), usbhid(4)

HISTORY
     The hsctrl driver first appeared in FreeBSD 13.0.

AUTHORS
     The hsctrl driver was written by Vladimir Kondratyev <wulf@FreeBSD.org>.

FreeBSD 13.1-RELEASE-p6        January 26, 2021        FreeBSD 13.1-RELEASE-p6