1 files changed, 62 insertions, 0 deletions
diff --git a/sys-apps/busybox/files/mdev/usbdev b/sys-apps/busybox/files/mdev/usbdev
new file mode 100644
index 000000000000..ea5b9155736c
--- /dev/null
+++ b/sys-apps/busybox/files/mdev/usbdev
@@ -0,0 +1,62 @@
+#!/bin/sh
+
+# script is buggy; until patched just do exit 0
+#exit 0
+
+# add zeros to device or bus
+add_zeros () {
+	case "$(echo $1 | wc -L)" in
+		1)	echo "00$1" ;;
+		2)	echo "0$1" ;;
+		*)	echo "$1"
+	esac
+	exit 0
+}
+
+
+# bus and device dirs in /sys
+USB_PATH=$(echo $MDEV | sed -e 's/usbdev\([0-9]\).[0-9]/usb\1/')
+USB_PATH=$(find /sys/devices -type d -name "$USB_PATH")
+USB_DEV_DIR=$(echo $MDEV | sed -e 's/usbdev\([0-9]\).\([0-9]\)/\1-\2/')
+
+# dir names in /dev
+BUS=$(add_zeros $(echo $MDEV | sed -e 's/^usbdev\([0-9]\).[0-9]/\1/'))
+USB_DEV=$(add_zeros $(echo $MDEV | sed -e 's/^usbdev[0-9].\([0-9]\)/\1/'))
+
+
+# try to load the proper driver for usb devices
+case "$ACTION" in
+	add|"")
+		# load usb bus driver
+		for i in $USB_PATH/*/modalias ; do
+			modprobe `cat $i` 2>/dev/null
+		done
+		# load usb device driver if existent
+		if [ -d $USB_PATH/$USB_DEV_DIR ]; then
+			for i in $USB_PATH/$USB_DEV_DIR/*/modalias ; do
+				modprobe `cat $i` 2>/dev/null
+			done
+		fi
+		# move usb device file
+		mkdir -p bus/usb/$BUS
+		mv $MDEV bus/usb/$BUS/$USB_DEV
+		;;
+	remove)
+		# unload device driver, if device dir is existent
+		if [ -d $USB_PATH/$USB_DEV_DIR ]; then
+			for i in $USB_PATH/$USB_DEV_DIR/*/modalias ; do
+				modprobe -r `cat $i` 2>/dev/null
+		done
+		fi
+		# unload usb bus driver. Does this make sense?
+		# what happens, if two usb devices are plugged in
+		# and one is removed?
+		for i in $USB_PATH/*/modalias ; do
+			modprobe -r `cat $i` 2>/dev/null
+		done
+		# remove device file and possible empty dirs
+		rm -f bus/usb/$BUS/$USB_DEV
+		rmdir bus/usb/$BUS/ 2>/dev/null
+		rmdir bus/usb/ 2>/dev/null
+		rmdir bus/ 2>/dev/null
+esac