fixed pikvm/pikvm#159: workaround for windows 98 absolute mouse bug

hid/platformio.ini

@@ -24,6 +24,8 @@ build_flags =
 	-DHID_WITH_USB
 	-DHID_SET_USB_KBD
 	-DHID_SET_USB_MOUSE_ABS
+# ----- The USB ABS fix for Windows 98 (https://github.com/pikvm/pikvm/issues/159) -----
+#	-DHID_USB_ABS_WIN98_FIX
 # ----- PS2 keyboard only -----
 #	-DHID_WITH_PS2
 #	-DHID_SET_PS2_KBD

hid/src/usb/hid.h

@@ -161,7 +161,11 @@ class UsbMouseAbsolute {
 
 		void sendMove(int x, int y) {
 			CHECK_HID_EP;
+#ifdef HID_USB_ABS_WIN98_FIX
+			_mouse.moveTo(x << 1, y << 1);
+#else
 			_mouse.moveTo(x, y);
+#endif
 		}
 
 		void sendWheel(int delta_y) {