-BYTE bVarIn1_l;
-BYTE bVarOut1_l;
-BYTE bVarOut1Old_l;
-BYTE bModeSelect_l; // state of the pushbuttons to select the mode
-BYTE bSpeedSelect_l; // state of the pushbuttons to increase/decrease the speed
-BYTE bSpeedSelectOld_l; // old state of the pushbuttons
-DWORD dwLeds_l; // current state of all LEDs
-BYTE bLedsRow1_l; // current state of the LEDs in row 1
-BYTE bLedsRow2_l; // current state of the LEDs in row 2
-BYTE abSelect_l[3]; // pushbuttons from CNs
+static u8 bVarIn1_l;
+static u8 bVarOut1_l;
+static u8 bVarOut1Old_l;
+static u8 bModeSelect_l; // state of the pushbuttons to select the mode
+static u8 bSpeedSelect_l; // state of the pushbuttons to increase/decrease the speed
+static u8 bSpeedSelectOld_l; // old state of the pushbuttons
+static u32 dwLeds_l; // current state of all LEDs
+static u8 bLedsRow1_l; // current state of the LEDs in row 1
+static u8 bLedsRow2_l; // current state of the LEDs in row 2
+static u8 abSelect_l[3]; // pushbuttons from CNs