diff --git a/README b/README
index 87839ca..b48f091 100644
--- a/README
+++ b/README
@@ -1,10 +1,17 @@
-Hanvon Artmaster I Tablet Driver
-================================
+Hanvon tablet driver
+====================
 
 Driver for Linux kernels which supports complete functionality of the tablet:
-pen coordinates, touch/float/click detection, pressure, x and y tilt, pen button,
-four simple tablet buttons (note that the first one works only together with pen
-activity), and the slider button.
+pen coordinates, touch/float/click detection, pressure, x and y tilt, pen
+button. On Artmaster I four simple tablet buttons (note that the first
+one works only together with pen activity), and the slider button.
+
+
+Supported hardware
+==================
+
+Artmaster I: AM0806, AM1107, AM1209
+Rollick: RL0604
 
 
 Installation
@@ -36,3 +43,4 @@ Revision history
  0.3b - patch for AM1209 from Markus Zucker applied
  0.3c - patch for AM1107 from Daniel Koch applied
  0.3d - support for right side buttons of AM1107 and AM1209
+  0.4 - code cleanup, RL0604 patch from Daniel Clemmer
diff --git a/hanvon.c b/hanvon.c
index 9fcdf0f..c319a52 100644
--- a/hanvon.c
+++ b/hanvon.c
@@ -7,7 +7,7 @@
 
 #define DRIVER_VERSION "0.4"
 #define DRIVER_AUTHOR "Ondra Havel <ondra.havel@gmail.com>"
-#define DRIVER_DESC "USB Hanvon Artmaster I tablet driver"
+#define DRIVER_DESC "USB Hanvon tablet driver"
 #define DRIVER_LICENSE "GPL"
 
 MODULE_AUTHOR(DRIVER_AUTHOR);
@@ -18,10 +18,11 @@ MODULE_LICENSE(DRIVER_LICENSE);
 #define USB_PRODUCT_ID_AM0806	0x8502
 #define USB_PRODUCT_ID_AM1107	0x8505
 #define USB_PRODUCT_ID_AM1209	0x8501
+#define USB_PRODUCT_ID_RL0604	0x851f
 #define USB_AM_PACKET_LEN	10
 
-static int lbuttons[]={BTN_0,BTN_1,BTN_2,BTN_3};
-static int rbuttons[]={BTN_4,BTN_5,BTN_6,BTN_7};
+static int lbuttons[]={BTN_0,BTN_1,BTN_2,BTN_3};	/* reported on all AMs */
+static int rbuttons[]={BTN_4,BTN_5,BTN_6,BTN_7};	/* reported on AM1107+ */
 
 #define AM_WHEEL_THRESHOLD	4
 
@@ -118,6 +119,7 @@ static struct usb_device_id hanvon_ids[] = {
 	{ USB_DEVICE(USB_VENDOR_ID_HANVON, USB_PRODUCT_ID_AM1209) },
 	{ USB_DEVICE(USB_VENDOR_ID_HANVON, USB_PRODUCT_ID_AM1107) },
 	{ USB_DEVICE(USB_VENDOR_ID_HANVON, USB_PRODUCT_ID_AM0806) },
+	{ USB_DEVICE(USB_VENDOR_ID_HANVON, USB_PRODUCT_ID_RL0604) },
 	{ }
 };