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-rw-r--r--info/adjbacklight.texinfo8
1 files changed, 7 insertions, 1 deletions
diff --git a/info/adjbacklight.texinfo b/info/adjbacklight.texinfo
index be30c2d..8142b82 100644
--- a/info/adjbacklight.texinfo
+++ b/info/adjbacklight.texinfo
@@ -92,12 +92,16 @@ code. Just @code{sed -i s/200/400/g Adjbacklight.java}, if you want 0.25 % preci
@cindex starting
@cindex options
@cindex arguments
+@cindex device
+@cindex selecting device
@cindex @command{adjbacklight}
@cindex @option{-c}
@cindex @option{--copying}
@cindex @option{--copyright}
@cindex @option{-w}
@cindex @option{--warranty}
+@cindex @option{-a}
+@cindex @option{--all}
@command{adjbacklight} can be started with @option{-c}, @option{--copying} or
@option{--copyright} for displaying copyright information, @option{-w} or
@@ -105,7 +109,9 @@ code. Just @code{sed -i s/200/400/g Adjbacklight.java}, if you want 0.25 % preci
is used, help information is displayed.
To actually use the program, just execute @command{adjbacklight} without any
-arguments.
+arguments, or with @option{-a} or @option{--all} to not limit the devices to
+those that are not ACPI video devices. Alternatively you can list the devices
+either by full path or just the name in the directory @file{/sys/class/backlight}.
@node Using