X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/664a2921816069483604f5e05a2a02b6ddf8727a..3d6508c9b9505cb3393b7c12df1a0c87f7828bbe:/Demos/Host/LowLevel/MouseHostWithParser/MouseHostWithParser.c

diff --git a/Demos/Host/LowLevel/MouseHostWithParser/MouseHostWithParser.c b/Demos/Host/LowLevel/MouseHostWithParser/MouseHostWithParser.c
index 736ab522a..c29d4debd 100644
--- a/Demos/Host/LowLevel/MouseHostWithParser/MouseHostWithParser.c
+++ b/Demos/Host/LowLevel/MouseHostWithParser/MouseHostWithParser.c
@@ -271,6 +271,21 @@ void ProcessMouseReport(uint8_t* MouseReport)
 			  LEDMask = LEDS_ALL_LEDS;
 		}
 		else if ((ReportItem->Attributes.Usage.Page   == USAGE_PAGE_GENERIC_DCTRL) &&
+				 (ReportItem->Attributes.Usage.Usage  == USAGE_SCROLL_WHEEL)       &&
+				 (ReportItem->ItemType                == REPORT_ITEM_TYPE_In))
+		{
+			/* Get the mouse wheel value if it is contained within the current 
+			 * report, if not, skip to the next item in the parser list
+			 */
+			if (!(USB_GetHIDReportItemInfo(MouseReport, ReportItem)))
+			  continue;							  
+
+			int16_t WheelDelta = HID_ALIGN_DATA(ReportItem, int16_t);
+			
+			if (WheelDelta)
+			  LEDMask = (LEDS_LED1 | LEDS_LED2 | ((WheelDelta > 0) ? LEDS_LED3 : LEDS_LED4));
+		}
+		else if ((ReportItem->Attributes.Usage.Page   == USAGE_PAGE_GENERIC_DCTRL) &&
 				 ((ReportItem->Attributes.Usage.Usage == USAGE_X)                  ||
 				  (ReportItem->Attributes.Usage.Usage == USAGE_Y))                 &&
 				 (ReportItem->ItemType                == REPORT_ITEM_TYPE_In))