diff -Nur linux-2.6.15.orig/drivers/acpi/asus_acpi.c linux-2.6.15/drivers/acpi/asus_acpi.c
--- linux-2.6.15.orig/drivers/acpi/asus_acpi.c	2006-01-03 04:21:10.000000000 +0100
+++ linux-2.6.15/drivers/acpi/asus_acpi.c	2006-01-12 04:12:31.048093432 +0100
@@ -42,12 +42,13 @@
 #include <acpi/acpi_bus.h>
 #include <asm/uaccess.h>
 
-#define ASUS_ACPI_VERSION "0.29"
+#define ASUS_ACPI_VERSION "0.29.1"
 
 #define PROC_ASUS       "asus"	//the directory
 #define PROC_MLED       "mled"
 #define PROC_WLED       "wled"
 #define PROC_TLED       "tled"
+#define PROC_BLED       "bled"
 #define PROC_INFO       "info"
 #define PROC_LCD        "lcd"
 #define PROC_BRN        "brn"
@@ -70,6 +71,7 @@
 #define MLED_ON     0x01	//is MLED ON ?
 #define WLED_ON     0x02
 #define TLED_ON     0x04
+#define BLED_ON     0x08
 
 MODULE_AUTHOR("Julien Lerouge, Karol Kozimor");
 MODULE_DESCRIPTION(ACPI_HOTK_NAME);
@@ -93,6 +95,8 @@
 	char *mt_tled;		//method to handle tled_____________R
 	char *tled_status;	//node to handle tled reading_______A
 	char *mt_lcd_switch;	//method to turn LCD ON/OFF_________A
+        char *mt_bled;           //method to handle bled_____________R
+        char *bled_status;       //node to handle bled reading_______A
 	char *lcd_status;	//node to read LCD panel state______A
 	char *brightness_up;	//method to set brightness up_______A
 	char *brightness_down;	//guess what ?______________________A
@@ -132,6 +136,7 @@
 		S1x,		//S1300A, but also L1400B and M2400A (L84F)
 		S2x,		//S200 (J1 reported), Victor MP-XP7210
 		xxN,		//M2400N, M3700N, M5200N, S1300N, S5200N, W1OOON
+		Wxx,      	//W5x - W5A, W5000, W5655AUP, W6x
 		//(Centrino)
 		END_MODEL
 	} model;		//Models currently supported
@@ -146,6 +151,7 @@
 #define S1x_PREFIX "\\_SB.PCI0.PX40."
 #define S2x_PREFIX A1x_PREFIX
 #define xxN_PREFIX "\\_SB.PCI0.SBRG.EC0."
+#define Wxx_PREFIX xxN_PREFIX
 
 static struct model_data model_conf[END_MODEL] = {
 	/*
@@ -353,7 +359,18 @@
 	 .brightness_set = "SPLV",
 	 .brightness_get = "GPLV",
 	 .display_set = "SDSP",
-	 .display_get = "\\ADVG"}
+	 .display_get = "\\ADVG"},
+
+        {
+        .name              = "Wxx",
+	 .mt_bled           = "BLED",
+	 .mt_wled           = "WLED",
+	 .mt_lcd_switch     = Wxx_PREFIX "_Q10",
+	 .lcd_status        = "\\VGAF",
+	 .brightness_set    = "SPLV",
+	 .brightness_get    = "GPLV",
+	 .display_set       = "SDSP",
+	 .display_get       = "\\_SB.PCI0.P0P2.VGA.GETD"}
 };
 
 /* procdir we use */
@@ -581,6 +598,23 @@
 }
 
 /*
+ * Proc handlers for BLED
+ */
+static int
+proc_read_bled(char *page, char **start, off_t off, int count, int *eof,
+	       void *data)
+{
+	return sprintf(page, "%d\n", read_led(hotk->methods->bled_status, BLED_ON));
+}
+
+static int
+proc_write_bled(struct file *file, const char __user *buffer,
+               unsigned long count, void *data)
+{
+       return write_led(buffer, count, hotk->methods->mt_bled, BLED_ON, 0);
+}
+
+/*
  * Proc handlers for TLED
  */
 static int
@@ -879,6 +913,10 @@
 			      mode, device);
 	}
 
+        if (hotk->methods->mt_bled) {
+	    asus_proc_add(PROC_BLED, &proc_write_bled, &proc_read_bled, mode, device);
+	}
+
 	if (hotk->methods->mt_tled) {
 		asus_proc_add(PROC_TLED, &proc_write_tled, &proc_read_tled,
 			      mode, device);
@@ -915,6 +953,8 @@
 			remove_proc_entry(PROC_WLED, acpi_device_dir(device));
 		if (hotk->methods->mt_mled)
 			remove_proc_entry(PROC_MLED, acpi_device_dir(device));
+                if (hotk->methods->mt_bled)
+	                remove_proc_entry(PROC_BLED,acpi_device_dir(device));
 		if (hotk->methods->mt_tled)
 			remove_proc_entry(PROC_TLED, acpi_device_dir(device));
 		if (hotk->methods->mt_lcd_switch && hotk->methods->lcd_status)
@@ -1055,6 +1095,10 @@
 		hotk->model = S2x;
 	else if (strncmp(model->string.pointer, "L5", 2) == 0)
 		hotk->model = L5x;
+	else if (strncmp(model->string.pointer, "W5", 2) == 0 ||
+		 strncmp(model->string.pointer, "W6", 2) == 0)
+		hotk->model = Wxx;
+
 
 	if (hotk->model == END_MODEL) {
 		printk("unsupported, trying default values, supply the "