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head/usr.bin/backlight/backlight.8
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.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | .\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | ||||
.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | .\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | ||||
.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | .\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||||
.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | ||||
.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||||
.\" | .\" | ||||
.\" $FreeBSD$ | .\" $FreeBSD$ | ||||
.\" | .\" | ||||
.Dd October 02, 2020 | .Dd October 06, 2020 | ||||
.Dt BACKLIGHT 8 | .Dt BACKLIGHT 8 | ||||
.Os | .Os | ||||
.Sh NAME | .Sh NAME | ||||
.Nm backlight | .Nm backlight | ||||
.Nd configure backlight hardware | .Nd configure backlight hardware | ||||
.Sh SYNOPSIS | .Sh SYNOPSIS | ||||
.Nm | .Nm | ||||
.Op Fl f Ar device | .Op Fl f Ar device | ||||
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.Pa /dev/backlight | .Pa /dev/backlight | ||||
is automatically prepended. | is automatically prepended. | ||||
.It Fl q | .It Fl q | ||||
When querying the brightness level only print the value. | When querying the brightness level only print the value. | ||||
.It Fl i | .It Fl i | ||||
Query information about the backlight (name, type). | Query information about the backlight (name, type). | ||||
.It Ar value | .It Ar value | ||||
Set the brightness level to this value, must be between 0 and 100. | Set the brightness level to this value, must be between 0 and 100. | ||||
A trailing '%' is valid. | |||||
.It Ar incr | + | .It Ar incr | + | ||||
.Op Ar value | .Op Ar value | ||||
Decrement the backlight level. | Decrement the backlight level. | ||||
If no value is specified a default of 10 percent is used. | If no value is specified a default of 10 percent is used. | ||||
.It Ar decr | - | .It Ar decr | - | ||||
.Op Ar value | .Op Ar value | ||||
Increment the backlight level. | Increment the backlight level. | ||||
If no value is specified a default of 10 percent is used. | If no value is specified a default of 10 percent is used. | ||||
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