Index: firmware/export/config-e200.h
===================================================================
--- firmware/export/config-e200.h	(Revision 17138)
+++ firmware/export/config-e200.h	(Arbeitskopie)
@@ -32,6 +32,9 @@
 /* define this if you have a light associated with the buttons */
 #define HAVE_BUTTON_LIGHT
 
+/* define this if the backlight thread is used for fade */
+#define HAVE_BACKLIGHT_THREAD_FADING
+
 /* define this if you have access to the quickscreen */
 #define HAVE_QUICKSCREEN
 
Index: firmware/backlight.c
===================================================================
--- firmware/backlight.c	(Revision 17138)
+++ firmware/backlight.c	(Arbeitskopie)
@@ -104,6 +104,9 @@
     BUTTON_LIGHT_ON,
     BUTTON_LIGHT_OFF,
 #endif
+#if defined(HAVE_BACKLIGHT_THREAD_FADING) && !defined(SIMULATOR)
+    BACKLIGHT_FADE,
+#endif
 };
 
 static void backlight_thread(void);
@@ -362,6 +365,30 @@
 }
 #endif /* defined(HAVE_BACKLIGHT_PWM_FADING) && !defined(SIMULATOR) */
 
+#if defined(HAVE_BACKLIGHT_THREAD_FADING) && !defined(SIMULATOR)
+static int backlight_fade_state = 0; /* 0=not fading, 1=fading up, 2=fading down */
+static unsigned int backlight_fade_counter = 0;
+
+static void _backlight_on(void)
+{
+    if (!backlight_fade_state)
+    {
+#ifdef HAVE_LCD_ENABLE
+        lcd_enable(true); /* power on lcd, this takes some time */
+#endif
+        backlight_fade_counter = 0;
+    }
+    backlight_fade_state = 1;
+}
+
+static void _backlight_off(void)
+{
+    if (!backlight_fade_state)
+        backlight_fade_counter = 0;
+    backlight_fade_state = 2;
+}
+#endif
+
 /* Update state of backlight according to timeout setting */
 static void backlight_update_state(void)
 {
@@ -519,7 +546,20 @@
                 backlight_timer = 0; /* Disable the timeout */
                 _backlight_off();
                 break;
-
+#if defined(HAVE_BACKLIGHT_THREAD_FADING) && !defined(SIMULATOR)
+            case BACKLIGHT_FADE:
+                if (backlight_fade_state == 1)
+                {
+                    if (__backlight_fade_up())
+                         backlight_fade_state = 0;
+                }
+                else if (backlight_fade_state == 2)
+                {
+                    if (__backlight_fade_down())
+                        backlight_fade_state = 0;
+                }
+                break;
+#endif /* defined(HAVE_BACKLIGHT_THREAD_FADING) && !defined(SIMULATOR) */
 #ifdef HAVE_LCD_SLEEP
             case LCD_SLEEP:
                 lcd_sleep();
@@ -573,7 +613,10 @@
         }
     }
 #endif /* HAVE_LCD_SLEEP */
-
+#if defined(HAVE_BACKLIGHT_THREAD_FADING) && !defined(SIMULATOR)
+    if (backlight_fade_state && (++backlight_fade_counter % (HZ/25) == 0))
+        queue_post(&backlight_queue, BACKLIGHT_FADE, 0);
+#endif
 #ifdef HAVE_REMOTE_LCD
     if(remote_backlight_timer)
     {
Index: firmware/target/arm/sandisk/backlight-c200_e200.c
===================================================================
--- firmware/target/arm/sandisk/backlight-c200_e200.c	(Revision 17138)
+++ firmware/target/arm/sandisk/backlight-c200_e200.c	(Arbeitskopie)
@@ -25,17 +25,8 @@
 #include "as3514.h"
 
 static unsigned short backlight_brightness = DEFAULT_BRIGHTNESS_SETTING;
+static unsigned short current_brightness   = DEFAULT_BRIGHTNESS_SETTING;
 
-void _backlight_set_brightness(int brightness)
-{
-    backlight_brightness = brightness;
-
-    if (brightness > 0)
-        _backlight_on();
-    else
-        _backlight_off();
-}
-
 void _backlight_on(void)
 {
 #ifdef HAVE_LCD_ENABLE
@@ -45,11 +36,13 @@
     _lcd_sleep_timer = 0; /* LCD should be awake already */
 #endif
     pp_i2c_send(AS3514_I2C_ADDR, AS3514_DCDC15, backlight_brightness);
+    current_brightness = backlight_brightness;
 }
 
 void _backlight_off(void)
 {
     pp_i2c_send(AS3514_I2C_ADDR, AS3514_DCDC15, 0x0);
+    current_brightness = 0;
 #ifdef HAVE_LCD_ENABLE
     lcd_enable(false); /* power off lcd */
 #endif
@@ -65,6 +58,17 @@
 #endif
 }
 
+void _backlight_set_brightness(int brightness)
+{
+    backlight_brightness = brightness;
+    current_brightness = brightness;
+
+    if (brightness > 0)
+        _backlight_on();
+    else
+        _backlight_off();
+}
+
 void _buttonlight_on(void)
 {
     GPIO_SET_BITWISE(GPIOG_OUTPUT_VAL, 0x80);
@@ -80,3 +84,30 @@
     GPIO_CLEAR_BITWISE(GPIOB_OUTPUT_VAL, 0x10); /* The "menu" backlight */
 #endif
 }
+
+/* returns true if fade is finished */
+bool  __backlight_fade_up(void)
+{
+#ifdef HAVE_LCD_ENABLE
+    lcd_enable(true); /* power on lcd */
+#endif
+    if (current_brightness < backlight_brightness)
+    {
+        pp_i2c_send(AS3514_I2C_ADDR, AS3514_DCDC15, ++current_brightness);
+    }
+    return current_brightness >= backlight_brightness;
+}
+
+bool  __backlight_fade_down(void)
+{
+    if (current_brightness > 0)
+    {
+        pp_i2c_send(AS3514_I2C_ADDR, AS3514_DCDC15, --current_brightness);
+    }
+    if (current_brightness == 0)
+    {
+        _backlight_off();
+        return true;
+    }
+    return false;
+}
Index: firmware/target/arm/sandisk/backlight-target.h
===================================================================
--- firmware/target/arm/sandisk/backlight-target.h	(Revision 17138)
+++ firmware/target/arm/sandisk/backlight-target.h	(Arbeitskopie)
@@ -18,13 +18,21 @@
  ****************************************************************************/
 #ifndef BACKLIGHT_TARGET_H
 #define BACKLIGHT_TARGET_H
+#include "stdbool.h"
 
 #define _backlight_init() true
+
+#ifndef HAVE_BACKLIGHT_THREAD_FADING
 void _backlight_on(void);
 void _backlight_off(void);
+#endif
 void _backlight_set_brightness(int brightness);
 int  __backlight_is_on(void);
 
+/* these both return true if the fade is finished */
+bool  __backlight_fade_up(void);
+bool  __backlight_fade_down(void);
+
 void _buttonlight_on(void);
 void _buttonlight_off(void);
 #endif