-#define MSP_OUT_SCART1 0 /* SCART1 input, bypassing the DSP */
-#define MSP_OUT_SCART2 1 /* SCART2 input, bypassing the DSP */
-#define MSP_OUT_SCART3 2 /* SCART3 input, bypassing the DSP */
-#define MSP_OUT_SCART4 3 /* SCART4 input, bypassing the DSP */
-#define MSP_OUT_SCART1_DA 4 /* DSP SCART1 output */
-#define MSP_OUT_SCART2_DA 5 /* DSP SCART2 output */
-#define MSP_OUT_MONO 6 /* MONO input, bypassing the DSP */
-#define MSP_OUT_MUTE 7 /* MUTE output */
-#define MSP_OUT_TO_SCART1(in) (in)
-#define MSP_OUT_TO_SCART2(in) ((in) << 4)
+#define MSP_SC_IN_SCART1 0 /* SCART1 input, bypassing the DSP */
+#define MSP_SC_IN_SCART2 1 /* SCART2 input, bypassing the DSP */
+#define MSP_SC_IN_SCART3 2 /* SCART3 input, bypassing the DSP */
+#define MSP_SC_IN_SCART4 3 /* SCART4 input, bypassing the DSP */
+#define MSP_SC_IN_DSP_SCART1 4 /* DSP SCART1 input */
+#define MSP_SC_IN_DSP_SCART2 5 /* DSP SCART2 input */
+#define MSP_SC_IN_MONO 6 /* MONO input, bypassing the DSP */
+#define MSP_SC_IN_MUTE 7 /* MUTE output */
+#define MSP_SC_TO_SCART1(in) (in)
+#define MSP_SC_TO_SCART2(in) ((in) << 4)