diff --git a/README b/README
index 22d63ad..b5b861f 100644
--- a/README
+++ b/README
@@ -18,6 +18,9 @@ Currently supported:
 * NF110/NF210/NF310
 * N220
 * N230
+* N350
+* R470/R420
+* R528/R728
 
 Not tested:
 
@@ -31,7 +34,7 @@ Have a similar problem, but need more information to add it (if you are owner of
 
 ## Installation
 
-git clone https://xonatius@github.com/xonatius/samsung-backlight.git
+git clone git://github.com/xonatius/samsung-backlight.git
 cd samsung-backlight
 make
 sudo make install
diff --git a/samsung-backlight.c b/samsung-backlight.c
index 8d16408..eba99f4 100644
--- a/samsung-backlight.c
+++ b/samsung-backlight.c
@@ -1,6 +1,7 @@
 /*
  * Samsung N130, N220, N230 NC10, Np-Q45, R468/R418, X320/X420/X520, X360,
- * R518, R510/P510, R410 and NF110/NF210/NF310 Laptop Backlight driver
+ * R518, R510/P510, R410, NF110/NF210/NF310, N350, R470/R420, R528/R728
+ * Laptop Backlight driver
  *
  * Copyright (C) 2011 Peter Savichev (proton) (psavichev@gmail.com)
  * Copyright (C) 2010 xonatius (xonatius@gmail.com)
@@ -31,9 +32,9 @@
  * overkill, that's fine.  So let's map the 256 values to 8 different ones:
  *
  * userspace     0    1    2    3    4    5    6    7
- * hardware     31   63   95  127  159  195  223  255
+ * hardware      3   39   75   111  147  183  219  255
  *
- * or hardware = ((userspace + 1) * 32)-1
+ * or hardware = (userspace * 36) + 3
  *
  * Note, we keep value 0 at a positive value, otherwise the screen goes
  * blank because HAL likes to set the backlight to 0 at startup when there is
@@ -54,7 +55,7 @@ static u8 read_brightness(void)
         u8 user_brightness = 0;
 
         pci_read_config_byte(pci_device, offset, &kernel_brightness);
-        user_brightness = ((kernel_brightness + 1) / 32) - 1;
+        user_brightness = (kernel_brightness - 3) / 36;
         return user_brightness;
 }
 
@@ -62,7 +63,7 @@ static void set_brightness(u8 user_brightness)
 {
         u16 kernel_brightness = 0;
 
-        kernel_brightness = ((user_brightness + 1) * 32) - 1;
+        kernel_brightness = (user_brightness * 36) + 3;
         pci_write_config_byte(pci_device, offset, (u8)kernel_brightness);
 }
 
@@ -207,7 +208,33 @@ static struct dmi_system_id __initdata samsung_dmi_table[] = {
                 },
                 .callback = dmi_check_cb,
         },
-
+        {
+                .ident = "N350",
+                .matches = {
+                         DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
+                         DMI_MATCH(DMI_PRODUCT_NAME, "N350"),
+                         DMI_MATCH(DMI_BOARD_NAME, "N350"),
+                },
+                .callback = dmi_check_cb,
+        },
+        {
+                .ident = "R470/R420",
+                .matches = {
+                         DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
+                         DMI_MATCH(DMI_PRODUCT_NAME, "R470/R420"),
+                         DMI_MATCH(DMI_BOARD_NAME, "R470/R420"),
+                },
+                .callback = dmi_check_cb,
+        },
+        {
+                .ident = "R528/R728",
+                .matches = {
+                         DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
+                         DMI_MATCH(DMI_PRODUCT_NAME, "R528/R728"),
+                         DMI_MATCH(DMI_BOARD_NAME, "R528/R728"),
+                },
+                .callback = dmi_check_cb,
+        },
         { },
 };
 
@@ -222,13 +249,14 @@ static int __init samsung_init(void)
         /*
          * The Samsung N120, N130, and NC10 use pci device id 0x27ae, while the
          * NP-Q45 uses 0x2a02
-         * R410P, R468/R418, R518, R510/P510, X320/X420/X520 and X360 uses 0x2a42
-         * N220 and NF110/NF210/NF310 uses 0xa011
+         * R410P, R468/R418, R518, R510/P510, X320/X420/X520, X360, R470/R420
+         * and R528/R728 uses 0x2a42
+         * N220, NF110/NF210/NF310 and N350 uses 0xa011
          * Odds are we might need to add more to the
          * list over time...
          */
         pci_device = pci_get_device(PCI_VENDOR_ID_INTEL, 0x27ae, NULL);
-        if (!pci_device) 
+        if (!pci_device)
                 pci_device = pci_get_device(PCI_VENDOR_ID_INTEL, 0x2a02, NULL);
         if (!pci_device)
                 pci_device = pci_get_device(PCI_VENDOR_ID_INTEL, 0x2a42, NULL);
@@ -236,7 +264,7 @@ static int __init samsung_init(void)
                 pci_device = pci_get_device(PCI_VENDOR_ID_INTEL, 0xa011, NULL);
         if (!pci_device)
                 return -ENODEV;
-        
+
 
         /* create a backlight device to talk to this one */
         backlight_device = backlight_device_register("samsung",
@@ -282,3 +310,6 @@ MODULE_ALIAS("dmi:*:svnSAMSUNGELECTRONICSCO.,LTD.:pnR510/P510:*:rnR510/P510:*");
 MODULE_ALIAS("dmi:*:svnSAMSUNGELECTRONICSCO.,LTD.:pnNF110/NF210/NF310:*:rnNF110/NF210/NF310:*");
 MODULE_ALIAS("dmi:*:svnSAMSUNGELECTRONICSCO.,LTD.:pnN220:*:rnN220:*");
 MODULE_ALIAS("dmi:*:svnSAMSUNGELECTRONICSCO.,LTD.:pnN230:*:rnN230:*");
+MODULE_ALIAS("dmi:*:svnSAMSUNGELECTRONICSCO.,LTD.:pnN350:*:rnN350:*");
+MODULE_ALIAS("dmi:*:svnSAMSUNGELECTRONICSCO.,LTD.:pnR470/R420:*:rnR470/R420:*");
+MODULE_ALIAS("dmi:*:svnSAMSUNGELECTRONICSCO.,LTD.:pnR528/R728:*:rnR528/R728:*");