1 files changed, 29 insertions, 16 deletions

diff --git a/apps/plugins/resistor.c b/apps/plugins/resistor.c
index ec6a364f23..2e204010a9 100644
--- a/apps/plugins/resistor.c
+++ b/apps/plugins/resistor.c
@@ -566,15 +566,17 @@ static void display_helpfile(void)
         { 159, TEXT_UNDERLINE },
         LAST_STYLE_ITEM
     };
-            
+
     display_text(ARRAYLEN(helpfile_text), helpfile_text, formatting,
                  NULL, true);
     return;
 }
-    
+
 static void led_resistance_calc(void)
 {
+#ifdef HAVE_BACKLIGHT
     backlight_ignore_timeout();
+#endif
     int voltage_menu_selection, button_press, j, k, l, foreward_current = 0;
     int fwd_current_selection = 0;
     bool quit = false;
@@ -759,14 +761,17 @@ static void led_resistance_calc(void)
         rb->lcd_puts_scroll(resistance_val_x, lineno++, power_rating_out_str);
 
         rb->lcd_update();
-        
+
         while ((button_press = rb->button_get(true)) & BUTTON_REL);
         switch(button_press) {
             case PLA_SELECT:
                 break;
             default:
                 quit = true;
+
+#ifdef HAVE_BACKLIGHT
                 backlight_use_settings();
+#endif
                 break;
         }
     }
@@ -776,10 +781,12 @@ static void led_resistance_calc(void)
     rb->lcd_clear_display();
 }
 
-        
-static void resistance_to_color(void) 
+
+static void resistance_to_color(void)
 {
+#ifdef HAVE_BACKLIGHT
     backlight_ignore_timeout();
+#endif
     int menu_selection;
     int menu_selection_tol;
     int button_press;
@@ -883,27 +890,29 @@ static void resistance_to_color(void)
                         in_resistance_int,band_data[units_used].unit);
             return;
         }
-        
+
         rb->lcd_clear_display();
         lineno = INITIAL_TEXT_Y;
 #ifndef USE_TEXT_ONLY
         draw_resistor(first_band, second_band, multiplier, fourth_band);
-#endif                     
+#endif
         draw_resistor_text(first_band, second_band, multiplier, fourth_band);
-        
+
         rb->snprintf(out_str, sizeof(out_str), "Input: %d %s", in_resistance_int,
                      band_data[units_used].unit);
         display->set_viewport(&text_vp);
         rb->lcd_puts_scroll(r_to_c_out_str_x, lineno++, out_str);
         rb->lcd_update();
-        
+
         button_press = rb->button_get(true);
         switch(button_press) {
             case PLA_SELECT:
                 break;
             default:
                 quit = true;
+#ifdef HAVE_BACKLIGHT
                 backlight_use_settings();
+#endif
                 break;
         }
     }
@@ -912,25 +921,27 @@ static void resistance_to_color(void)
     display->set_viewport(&screen_vp);
     rb->lcd_clear_display();
 }
-    
-static void color_to_resistance(void) 
+
+static void color_to_resistance(void)
 {
+#ifdef HAVE_BACKLIGHT
     backlight_ignore_timeout();
+#endif
     bool quit = false;
     int button_input = 0;
-            
+
     /* The colors of the bands */
     enum color first_band = 0;
     enum color second_band = 0;
     enum color third_band = 0;
     enum color fourth_band = 0;
-           
+
     int total_resistance_centiunits = 0;
     char total_resistance_str [35];
-            
+
     rb->splash(HZ/2, "Colour to resistance");
     rb->lcd_clear_display();
-            
+
     while(!quit) {
         first_band = do_first_band_menu();
         if(first_band==RES_INVALID) break;
@@ -984,9 +995,11 @@ static void color_to_resistance(void)
             case PLA_SELECT:
             default:
                 quit = true;
+#ifdef HAVE_BACKLIGHT
                 backlight_use_settings();
+#endif
                 break;
-        }                   
+        }
     }
     display->set_viewport(&text_vp);
     rb->lcd_scroll_stop();