X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/87b2572ae50d20f04dfa6bfbd9e0b8b20ee650e9..ba8ffa4cb70a45f4e487a874276759d81ae8ae2e:/Demos/Host/ClassDriver/MouseHostWithParser/MouseHostWithParser.c?ds=sidebyside

diff --git a/Demos/Host/ClassDriver/MouseHostWithParser/MouseHostWithParser.c b/Demos/Host/ClassDriver/MouseHostWithParser/MouseHostWithParser.c
index b9edee1e1..80ddc5527 100644
--- a/Demos/Host/ClassDriver/MouseHostWithParser/MouseHostWithParser.c
+++ b/Demos/Host/ClassDriver/MouseHostWithParser/MouseHostWithParser.c
@@ -142,6 +142,21 @@ int main(void)
 							  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 = (int16_t)(ReportItem->Value << (16 - ReportItem->Attributes.BitSize));
+							
+							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))