Script to set brightness with a scaling factor.

1 files changed, 25 insertions, 0 deletions

diff --git a/bin/brightness.sh b/bin/brightness.sh
new file mode 100755
index 0000000..5a1939e
--- /dev/null
+++ b/bin/brightness.sh
@@ -0,0 +1,25 @@
+#!/bin/bash
+readonly XBACKLIGHT=xbacklight
+readonly levels=(0 1 2 3 4 6 10 15 20 25 30 40 50 60 70 80 90 100)
+
+current_level=$($XBACKLIGHT)
+current_level=$((${current_level%.*}))
+
+if (( "$current_level" < 8 )); then
+    diff=1
+elif (( "$current_level" < 24 )); then
+    diff=6
+elif (( "$current_level" < 50 )); then
+    diff=12
+else
+    diff=24
+fi
+
+if [[ $1 == "+" ]]; then
+    $XBACKLIGHT -inc $diff
+elif [[ $1 == "-" ]]; then
+    $XBACKLIGHT -dec $diff
+else
+    echo "Usage: $0 +|-"
+    exit 1
+fi