diff --git a/docs/lcdproc-user/drivers/hd44780.docbook b/docs/lcdproc-user/drivers/hd44780.docbook
index 0bbb75e..e08dfcc 100644
--- a/docs/lcdproc-user/drivers/hd44780.docbook
+++ b/docs/lcdproc-user/drivers/hd44780.docbook
@@ -1229,7 +1229,6 @@ that. The BL output below should be connected to the BL input in the
 </screen>
 </figure>
 
-
 </sect4>
 
 </sect3>
@@ -1245,6 +1244,24 @@ config file with the Device= setting. The default is /dev/lcd.
 It does not support a keypad nor backlight switching.
 </para>
 
+<para>
+For more information see the
+<ulink url="http://dalewheat.com/pdf/PIC-an-LCD.pdf">PIC-an-LCD User Manual</ulink>
+by Dale Wheat.
+</para>
+
+</sect3>
+
+
+<sect3 id="hd44780-lis2">
+<title>LIS2 USB device "lis2"</title>
+
+<para>
+LIS2 from VLSystem (http://www.vlsys.co.kr) is a full featured usb vfd module
+with four channel fan controls. This device can be access as a serial device with
+help of the kernel modules ftdi_sio which map the USB port to a serial port (/dev/ttyUSBx).
+</para>
+
 </sect3>
 
 <sect3 id="hd44780-lcdserializer">
diff --git a/server/drivers/hd44780-picanlcd.c b/server/drivers/hd44780-picanlcd.c
index d6f39af..14d0ee2 100644
--- a/server/drivers/hd44780-picanlcd.c
+++ b/server/drivers/hd44780-picanlcd.c
@@ -13,7 +13,7 @@
  *
  * See the PIC-an-LCD documentation for data on how it should be connected
  * to the computer.
- * http://dalewheat.com/products/PIC-an-LCD/index.html
+ * http://dalewheat.com/pdf/PIC-an-LCD.pdf
  *
  */