fixed minor trouble, now builds, untested

firmware/masterchip/spi_pointers.h

@@ -4,7 +4,7 @@
 
 #include <stdint.h>
 
-typedef void(*funptr_t)();
+typedef int16_t(*funptr_t)(int16_t);
 
 extern uint16_t *spi_proto_globals8[];
 extern uint8_t *spi_proto_globals16[];

firmware/shared/spi.h

@@ -23,6 +23,7 @@ void spi_mst_end_packet();
 void spi_mst_write(uint8_t len, uint8_t *data);
 void spi_mst_read(uint8_t len, uint8_t *data);
 void spi_mst_write_read(uint8_t len, uint8_t *data);
+void spi_mst_packet_delay();
 void spi_sla_handle_packet();