Add nltrigger.

1 files changed, 58 insertions, 0 deletions

diff --git a/nltrigger b/nltrigger
new file mode 100755
index 0000000..f5733b4
--- /dev/null
+++ b/nltrigger
@@ -0,0 +1,58 @@
+#!/bin/sh
+
+if [ $# -eq 0 ];
+then
+	printf "usage: %s subsystem [action]\n" "$(basename $0)" >&2
+	exit 1
+fi
+
+action="add"
+if [ $# -eq 2 ];
+then
+	action="$2"
+fi
+
+if [ "$1" != "all" ];
+then
+	if [ -d /sys/class/$1 ];
+	then
+		for i in /sys/class/$1/*/uevent;
+		do
+			echo $action > $i
+		done
+		exit 0
+	fi
+
+	if [ -d /sys/bus/$1 ];
+	then
+		for i in /sys/bus/$1/devices/*/uevent;
+		do
+			echo $action > $i
+		done
+		exit 0
+	fi
+
+	if [ -d /sys/devices/$1 ];
+	then
+		for i in /sys/devices/$1/*/uevent \
+			/sys/devices/$1/*/*/uevent;
+		do
+			echo $action > $i
+		done
+		exit 0
+	fi
+
+	printf "Could not find subsystem '%s'.\n" $i >&2
+	exit 1
+fi
+
+exit 0
+
+for i in /sys/class/*/*/uevent /sys/bus/*/devices/*/uevent \
+	/sys/devices/*/*/uevent /sys/devices/*/*/*/uevent;
+do
+	echo $action > $i
+done
+
+exit 0
+