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30 .Nd configure backlight hardware
48 utility can be used to configure brightness levels for registered backlights.
50 The options are as follows:
51 .Bl -tag -width "-f device"
55 .Pa /dev/backlight/backlight0
57 If an unqualified name is provided,
59 is automatically prepended.
61 Query information about the backlight (name, type).
63 When querying the brightness level only print the value.
65 Set the brightness level to this value, must be between 0 and 100.
69 .It Cm incr Ns | Ns Cm + Op Ar value
70 Decrement the backlight level.
71 If no value is specified a default of 10 percent is used.
72 .It Cm decr Ns | Ns Cm - Op Ar value
73 Increment the backlight level.
74 If no value is specified a default of 10 percent is used.
77 Show the current brightness level
78 .Bd -literal -offset indent
79 backlight -f /dev/backlight/backlight0
92 utility and this manual page were written by
93 .An Emmanuel Vadot Aq Mt manu@FreeBSD.org .