/* MMA655X is hooked up so that positive values represent negative acceleration */
#define ao_data_accel(packet) ((packet)->mma655x)
+#if AO_MMA655X_INVERT
+#define ao_data_accel_cook(packet) (4095 - (packet)->mma655x)
+#else
#define ao_data_accel_cook(packet) ((packet)->mma655x)
+#endif
#define ao_data_set_accel(packet, accel) ((packet)->mma655x = (accel))
#define ao_data_accel_invert(accel) (4095 - (accel))