Index: uisimulator/sdl/button_defines.h
===================================================================
--- uisimulator/sdl/button_defines.h	(revision 0)
+++ uisimulator/sdl/button_defines.h	(revision 0)
@@ -0,0 +1,202 @@
+/*
+ *  Generated with the following command:
+ *  for b in $(grep -o "BUTTON[_A-Z]*" button.c |sort |uniq); do
+ *    printf "#ifdef %s\n    { \"%s\", %s },\n#endif\n" $b $b $b >> button_defines.h
+ *  done
+ * 
+ *  Plus some manual editing
+ */
+struct buttonpairs {
+    char *define;
+    int value;
+};
+
+static struct buttonpairs buttons[] = {
+
+    /* USB connection events */
+#ifdef SYS_USB_CONNECTED
+    { "SYS_USB_CONNECTED", SYS_USB_CONNECTED },
+#endif
+#ifdef SYS_USB_DISCONNECTED
+    { "SYS_USB_DISCONNECTED", SYS_USB_DISCONNECTED },
+#endif
+
+    /* Button events */
+#ifdef BUTTON_A
+    { "BUTTON_A", BUTTON_A },
+#endif
+#ifdef BUTTON_BACK
+    { "BUTTON_BACK", BUTTON_BACK },
+#endif
+#ifdef BUTTON_BOTTOMLEFT
+    { "BUTTON_BOTTOMLEFT", BUTTON_BOTTOMLEFT },
+#endif
+#ifdef BUTTON_BOTTOMMIDDLE
+    { "BUTTON_BOTTOMMIDDLE", BUTTON_BOTTOMMIDDLE },
+#endif
+#ifdef BUTTON_BOTTOMRIGHT
+    { "BUTTON_BOTTOMRIGHT", BUTTON_BOTTOMRIGHT },
+#endif
+#ifdef BUTTON_CENTER
+    { "BUTTON_CENTER", BUTTON_CENTER },
+#endif
+#ifdef BUTTON_CUSTOM
+    { "BUTTON_CUSTOM", BUTTON_CUSTOM },
+#endif
+#ifdef BUTTON_DISPLAY
+    { "BUTTON_DISPLAY", BUTTON_DISPLAY },
+#endif
+#ifdef BUTTON_DOWN
+    { "BUTTON_DOWN", BUTTON_DOWN },
+#endif
+#ifdef BUTTON_EQ
+    { "BUTTON_EQ", BUTTON_EQ },
+#endif
+#ifdef BUTTON_F
+    { "BUTTON_F", BUTTON_F },
+#endif
+#ifdef BUTTON_FF
+    { "BUTTON_FF", BUTTON_FF },
+#endif
+#ifdef BUTTON_FFWD
+    { "BUTTON_FFWD", BUTTON_FFWD },
+#endif
+#ifdef BUTTON_HOLD
+    { "BUTTON_HOLD", BUTTON_HOLD },
+#endif
+#ifdef BUTTON_HOME
+    { "BUTTON_HOME", BUTTON_HOME },
+#endif
+#ifdef BUTTON_LEFT
+    { "BUTTON_LEFT", BUTTON_LEFT },
+#endif
+#ifdef BUTTON_MENU
+    { "BUTTON_MENU", BUTTON_MENU },
+#endif
+#ifdef BUTTON_MIDLEFT
+    { "BUTTON_MIDLEFT", BUTTON_MIDLEFT },
+#endif
+#ifdef BUTTON_MIDRIGHT
+    { "BUTTON_MIDRIGHT", BUTTON_MIDRIGHT },
+#endif
+#ifdef BUTTON_MINUS
+    { "BUTTON_MINUS", BUTTON_MINUS },
+#endif
+#ifdef BUTTON_MODE
+    { "BUTTON_MODE", BUTTON_MODE },
+#endif
+#ifdef BUTTON_NEXT
+    { "BUTTON_NEXT", BUTTON_NEXT },
+#endif
+#ifdef BUTTON_NONE
+    { "BUTTON_NONE", BUTTON_NONE },
+#endif
+#ifdef BUTTON_OFF
+    { "BUTTON_OFF", BUTTON_OFF },
+#endif
+#ifdef BUTTON_ON
+    { "BUTTON_ON", BUTTON_ON },
+#endif
+#ifdef BUTTON_PLAY
+    { "BUTTON_PLAY", BUTTON_PLAY },
+#endif
+#ifdef BUTTON_PLAYLIST
+    { "BUTTON_PLAYLIST", BUTTON_PLAYLIST },
+#endif
+#ifdef BUTTON_PLUS
+    { "BUTTON_PLUS", BUTTON_PLUS },
+#endif
+#ifdef BUTTON_POWER
+    { "BUTTON_POWER", BUTTON_POWER },
+#endif
+#ifdef BUTTON_PREV
+    { "BUTTON_PREV", BUTTON_PREV },
+#endif
+#ifdef BUTTON_RC_DOWN
+    { "BUTTON_RC_DOWN", BUTTON_RC_DOWN },
+#endif
+#ifdef BUTTON_RC_FF
+    { "BUTTON_RC_FF", BUTTON_RC_FF },
+#endif
+#ifdef BUTTON_RC_HEART
+    { "BUTTON_RC_HEART", BUTTON_RC_HEART },
+#endif
+#ifdef BUTTON_RC_MODE
+    { "BUTTON_RC_MODE", BUTTON_RC_MODE },
+#endif
+#ifdef BUTTON_RC_PLAY
+    { "BUTTON_RC_PLAY", BUTTON_RC_PLAY },
+#endif
+#ifdef BUTTON_RC_REW
+    { "BUTTON_RC_REW", BUTTON_RC_REW },
+#endif
+#ifdef BUTTON_RC_VOL_DOWN
+    { "BUTTON_RC_VOL_DOWN", BUTTON_RC_VOL_DOWN },
+#endif
+#ifdef BUTTON_RC_VOL_UP
+    { "BUTTON_RC_VOL_UP", BUTTON_RC_VOL_UP },
+#endif
+#ifdef BUTTON_REC
+    { "BUTTON_REC", BUTTON_REC },
+#endif
+#ifdef BUTTON_REMOTE
+    { "BUTTON_REMOTE", BUTTON_REMOTE },
+#endif
+#ifdef BUTTON_REPEAT
+    { "BUTTON_REPEAT", BUTTON_REPEAT },
+#endif
+#ifdef BUTTON_REW
+    { "BUTTON_REW", BUTTON_REW },
+#endif
+#ifdef BUTTON_RIGHT
+    { "BUTTON_RIGHT", BUTTON_RIGHT },
+#endif
+#ifdef BUTTON_SCROLL_BACK
+    { "BUTTON_SCROLL_BACK", BUTTON_SCROLL_BACK },
+#endif
+#ifdef BUTTON_SCROLL_DOWN
+    { "BUTTON_SCROLL_DOWN", BUTTON_SCROLL_DOWN },
+#endif
+#ifdef BUTTON_SCROLL_FWD
+    { "BUTTON_SCROLL_FWD", BUTTON_SCROLL_FWD },
+#endif
+#ifdef BUTTON_SCROLL_UP
+    { "BUTTON_SCROLL_UP", BUTTON_SCROLL_UP },
+#endif
+#ifdef BUTTON_SELECT
+    { "BUTTON_SELECT", BUTTON_SELECT },
+#endif
+#ifdef BUTTON_STOP
+    { "BUTTON_STOP", BUTTON_STOP },
+#endif
+#ifdef BUTTON_TOPLEFT
+    { "BUTTON_TOPLEFT", BUTTON_TOPLEFT },
+#endif
+#ifdef BUTTON_TOPMIDDLE
+    { "BUTTON_TOPMIDDLE", BUTTON_TOPMIDDLE },
+#endif
+#ifdef BUTTON_TOPRIGHT
+    { "BUTTON_TOPRIGHT", BUTTON_TOPRIGHT },
+#endif
+#ifdef BUTTON_TOUCHSCREEN
+    { "BUTTON_TOUCHSCREEN", BUTTON_TOUCHSCREEN },
+#endif
+#ifdef BUTTON_UP
+    { "BUTTON_UP", BUTTON_UP },
+#endif
+#ifdef BUTTON_VIEW
+    { "BUTTON_VIEW", BUTTON_VIEW },
+#endif
+#ifdef BUTTON_VOLDOWN
+    { "BUTTON_VOLDOWN", BUTTON_VOLDOWN },
+#endif
+#ifdef BUTTON_VOL_DOWN
+    { "BUTTON_VOL_DOWN", BUTTON_VOL_DOWN },
+#endif
+#ifdef BUTTON_VOLUP
+    { "BUTTON_VOLUP", BUTTON_VOLUP },
+#endif
+#ifdef BUTTON_VOL_UP
+    { "BUTTON_VOL_UP", BUTTON_VOL_UP },
+#endif
+};
Index: uisimulator/sdl/uisdl.c
===================================================================
--- uisimulator/sdl/uisdl.c	(revision 22563)
+++ uisimulator/sdl/uisdl.c	(working copy)
@@ -41,6 +41,11 @@
 #include "SDL_mutex.h"
 #include "SDL_thread.h"
 
+#include "button_defines.h"
+#include "backlight.h"
+#define PIPEBUFFER 255
+FILE *cmdpipe = NULL;
+
 /* extern functions */
 extern void new_key(int key);
 
@@ -102,6 +107,44 @@
     }
 }
 
+void cmdpipe_loop(void)
+{
+    char line[PIPEBUFFER + 1];
+    int i, button_num;
+
+    button_num = sizeof(buttons)/sizeof(struct buttonpairs);
+
+    printf("Available commands:\n");
+    printf("  SCREENSHOT\n");
+    for (i = 0; i < button_num; i++)
+    {
+        printf("  %s\n", buttons[i].define);
+    }
+
+    while (fgets(line, PIPEBUFFER, cmdpipe)) {
+        line[strlen(line) - 1] = 0;
+        for (i = 0; i < button_num; i++)
+        {
+            if (strcmp(line, "SCREENSHOT") == 0) {
+                sim_trigger_screendump();
+            }
+            else if (strcmp(line, buttons[i].define) == 0) {
+                /* 
+                 * This is not "real" button handling. We simply post key
+                 * events directly into the queue as we get them and force
+                 * the backlight on.
+                 */
+                sim_enter_irq_handler();
+                backlight_on();
+                queue_post(&button_queue, buttons[i].value, 0);
+                queue_post(&button_queue, buttons[i].value|BUTTON_REL, 0);
+                sim_exit_irq_handler();
+            }
+        }
+    }
+    fclose(cmdpipe);
+}
+
 bool gui_startup(void)
 {
     SDL_Surface *picture_surface;
@@ -225,17 +268,34 @@
                     printf("Root directory: %s\n", sim_root_dir);
                 }
             }
+            else if (!strcmp("--cmdpipe", argv[x]))
+            {
+                x++;
+                if (x < argc)
+                {
+                    printf("Command pipe: %s\n", argv[x]);
+                    printf("Opening pipe..\n");
+                    cmdpipe = fopen(argv[x], "r");
+                    printf("Pipe opened\n");
+                    if (cmdpipe == NULL)
+                    {
+                        printf("Couldn't open file: %s\n", argv[x]);
+                        exit(1);
+                    }
+                }
+            }
             else 
             {
                 printf("rockboxui\n");
                 printf("Arguments:\n");
-                printf("  --debugaudio \t Write raw PCM data to audiodebug.raw\n");
-                printf("  --debugwps \t Print advanced WPS debug info\n");
+                printf("  --debugaudio \t\t Write raw PCM data to audiodebug.raw\n");
+                printf("  --debugwps \t\t Print advanced WPS debug info\n");
                 printf("  --nobackground \t Disable the background image\n");
-                printf("  --old_lcd \t [Player] simulate old playermodel (ROM version<4.51)\n");
-                printf("  --zoom [VAL]\t Window zoom (will disable backgrounds)\n");
-                printf("  --alarm \t Simulate a wake-up on alarm\n");
-                printf("  --root [DIR]\t Set root directory\n");
+                printf("  --old_lcd \t\t [Player] simulate old playermodel (ROM version<4.51)\n");
+                printf("  --zoom [VAL]\t\t Window zoom (will disable backgrounds)\n");
+                printf("  --alarm \t\t Simulate a wake-up on alarm\n");
+                printf("  --cmdpipe [FILE] \t Read commands from a named pipe (not keyboard)\n");
+                printf("  --root [DIR]\t\t Set root directory\n");
                 exit(0);
             }
         }
@@ -261,7 +321,10 @@
         return -1;
     }
 
-    gui_message_loop();
+    if (cmdpipe != NULL)
+        cmdpipe_loop();
+    else
+        gui_message_loop();
 
     return gui_shutdown();
 }