Benjamin Schieder:

package/base/udev/inputdev.sh

@@ -0,0 +1,30 @@
+#!/bin/sh -e
+#
+# Scans /proc/bus/input/devices for the given device.
+#
+# (c) 2004 Darren Salt <linux@youmustbejoking.demon.co.uk>
+# GPL v2 or later applies.
+
+[ "$1" ] || exit 0
+
+# input device name, less leading "input/"
+DEVICE=${1#input/}
+
+# "|"-separated list.
+# The first found in the given device's "N:" line will be output.
+DEFAULT_KEYWORDS='dvb|saa7134'
+KEYWORDS=${2:-$DEFAULT_KEYWORDS}
+
+exec sed -nre '
+  /^I:/ {
+    : gather
+    N
+    /\nH:/! b gather
+    /'"$DEVICE"'/ {
+      s/^.*\nN:[^\n]*("|\b)('"$KEYWORDS"')("|\b)[^\n]*\n.*$/inputdev/
+      T
+      p
+    }
+  }
+' < /proc/bus/input/devices
+

package/base/udev/udev.conf

@@ -27,6 +27,8 @@ udev_pm() {
 	cp -v extras/{ide-devfs.sh,scsi-devfs.sh} $root/etc/udev/scripts/
 	chmod +x $root/etc/udev/scripts/{ide-devfs.sh,scsi-devfs.sh}
 	cp -v $confdir/permissions.rules $root/etc/udev/rules.d/
+	cp -v $confdir/inputdev.sh $root/etc/udev/scripts
+	chmod +x $root/etc/udev/scripts/inputdev.sh
 	ln -svf ../etc/udev/scripts $root/lib/udev
 	install_init udevd $confdir/udevd.init
 }