Mercurial > backlight
diff backlight.1 @ 16:0d923f0155dd
doc: improve documentation
author | David Demelier <markand@malikania.fr> |
---|---|
date | Fri, 11 Oct 2019 13:12:26 +0200 |
parents | 282ec7c30c04 |
children | 0de3886f98ad |
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--- a/backlight.1 Fri Oct 11 12:58:48 2019 +0200 +++ b/backlight.1 Fri Oct 11 13:12:26 2019 +0200 @@ -51,6 +51,25 @@ .Ar percentage value. .El +.\" SYSTEM SUPPORT +.Sh SYSTEM SUPPORT +.Ss Linux +On Linux, you need to have ACPI Video support either as module or built-in the +kernel. +.Pp +You may use +.Nm +as non-root user if you create appropriate udev rules to make files under +.Pa /sys/class/backlight +writable by a group or per user. +.Ss FreeBSD +Access to brightness under FreeBSD requires super-user, you may need to run +.Nm +as root or use setuid permission for non-root users. +.Pp +You also need to load +.Xr acpi_video 4 +module at boot. .\" AUTHORS .Sh AUTHORS .Nm