add support for ox820 devices

boot/arm/usb_key_func

@@ -0,0 +1,47 @@
+# usb key funct taken from Medion live and adapted for buffalo
+# modified by Mario Fetka (geos_one) <mario.fetka@gmail.com>
+
+Exe_USB_KEY()
+{
+	# Check model name
+	export MODEL_NAME="@@NASKERNELNAME@@"
+
+	# Scan USB disk for HW test.
+	any_usb=`ls /sys/block/ | grep sd`
+	echo "${any_usb}"
+	if [ -n "${any_usb}" ]; then
+		#/bin/mkdir /mnt/parnerkey
+		for usb in ${any_usb}
+		do
+			echo "checking ${usb}"
+			#Get the number of question marks
+			qmark_num=`fdisk -l /dev/${usb} | grep "^"/dev/${usb} | grep -c "?"`
+			partition_num=`fdisk -l /dev/${usb} | grep "^"/dev/${usb}`
+			if [ "${qmark_num}" == "4" ] || [ "${partition_num}" == "" ]; then
+				mnt_point=/dev/${usb}
+				echo "Trying to mount ${mnt_point}"
+				mount -o iocharset=utf8,shortname=mixed,ro ${mnt_point} /mnt/parnerkey
+			else
+				mnt_point=`fdisk -l /dev/${usb} | grep "^"/dev/${usb} | awk '{print $1}' | sed -n '1p'`
+				echo "Trying to mount ${mnt_point}"
+				mount -o iocharset=utf8,shortname=mixed,ro ${mnt_point} /mnt/parnerkey
+			fi
+
+			mount_SUC=`cat /proc/mounts | grep /mnt/parnerkey`
+			if [ "${mount_SUC}" != "" ]; then
+				if [ -e /mnt/parnerkey/${MODEL_NAME}_check_file ]; then
+					#/mnt/parnerkey/usb_key_func.sh
+					script_path=`cat /mnt/parnerkey/${MODEL_NAME}_check_file | sed -n '1p'`
+					${script_path}
+					if [ $? == 0 ]; then
+						exit 0
+					fi
+				fi
+				umount /mnt/parnerkey
+			else
+				echo "Fail to mount ${mnt_point}"
+			fi
+		done
+		#rmdir /mnt/parnerkey
+	fi
+}