mk450: documentation, prepare for merge

[cortex-from-scratch] / drivers / mk450_joystick.c

diff --git a/drivers/mk450_joystick.c b/drivers/mk450_joystick.c
index 7ca3366..cf500a3 100644 (file)
--- a/drivers/mk450_joystick.c
+++ b/drivers/mk450_joystick.c
@@ -41,15 +41,17 @@ uint16_t xyvalues[2] = {0,0};
 
 /* Y return values is 
  * ~0xC1C mv means y is idle state 
- * ~0x0 far left
- * ~0xFFF far right */
+ * ~0x0 far up
+ * ~0xFFF far down */
 uint16_t mk450_gety() {
 
        int y = xyvalues[1]; 
        return y;
 }
 
-/* X return values (see y) */
+/* X return values (see y)
+ * Far right: 0xFFF
+ * Far left: 0x0 */
 uint16_t mk450_getx() {
 
        int x = xyvalues[0];