diff --git a/quantum/config_common.h b/quantum/config_common.h
index 4d3939dae1..0a2dba78ff 100644
--- a/quantum/config_common.h
+++ b/quantum/config_common.h
@@ -79,4 +79,122 @@
 #   endif
 #endif
 
+#ifdef PS2_USE_BUSYWAIT
+#   ifndef PS2_CLOCK_PORT
+#       error "PS2_CLOCK_PORT has to be defined"
+#   endif
+#   ifndef PS2_CLOCK_PIN
+#       error "PS2_CLOCK_PIN has to be defined"
+#   endif
+#   ifndef PS2_CLOCK_DDR
+#       error "PS2_CLOCK_DDR has to be defined"
+#   endif
+#   ifndef PS2_CLOCK_BIT
+#       error "PS2_CLOCK_BIT has to be defined"
+#   endif
+#   ifndef PS2_DATA_PORT
+#       error "PS2_DATA_PORT has to be defined"
+#   endif
+#   ifndef PS2_DATA_PIN
+#       error "PS2_DATA_PIN has to be defined"
+#   endif
+#   ifndef PS2_DATA_DDR
+#       error "PS2_DATA_DDR has to be defined"
+#   endif
+#   ifndef PS2_DATA_BIT
+#       error "PS2_DATA_BIT has to be defined"
+#   endif
+#endif
+
+#ifdef PS2_USE_INT
+#   ifndef PS2_CLOCK_PORT
+#       error "PS2_CLOCK_PORT has to be defined"
+#   endif
+#   ifndef PS2_CLOCK_PIN
+#       error "PS2_CLOCK_PIN has to be defined"
+#   endif
+#   ifndef PS2_CLOCK_DDR
+#       error "PS2_CLOCK_DDR has to be defined"
+#   endif
+#   ifndef PS2_CLOCK_BIT
+#       error "PS2_CLOCK_BIT has to be defined"
+#   endif
+#   ifndef PS2_DATA_PORT
+#       error "PS2_DATA_PORT has to be defined"
+#   endif
+#   ifndef PS2_DATA_PIN
+#       error "PS2_DATA_PIN has to be defined"
+#   endif
+#   ifndef PS2_DATA_DDR
+#       error "PS2_DATA_DDR has to be defined"
+#   endif
+#   ifndef PS2_DATA_BIT
+#       error "PS2_DATA_BIT has to be defined"
+#   endif
+#   ifndef PS2_INT_INIT
+#       error "PS2_INT_INIT has to be defined"
+#   endif
+#   ifndef PS2_INT_ON
+#       error "PS2_INT_ON has to be defined"
+#   endif
+#   ifndef PS2_INT_OFF
+#       error "PS2_INT_OFF has to be defined"
+#   endif
+#   ifndef PS2_INT_VECT
+#       error "PS2_INT_VECT has to be defined"
+#   endif
+#endif
+
+#ifdef PS2_USE_USART
+#   ifndef PS2_CLOCK_PORT
+#       error "PS2_CLOCK_PORT has to be defined"
+#   endif
+#   ifndef PS2_CLOCK_PIN
+#       error "PS2_CLOCK_PIN has to be defined"
+#   endif
+#   ifndef PS2_CLOCK_DDR
+#       error "PS2_CLOCK_DDR has to be defined"
+#   endif
+#   ifndef PS2_CLOCK_BIT
+#       error "PS2_CLOCK_BIT has to be defined"
+#   endif
+#   ifndef PS2_DATA_PORT
+#       error "PS2_DATA_PORT has to be defined"
+#   endif
+#   ifndef PS2_DATA_PIN
+#       error "PS2_DATA_PIN has to be defined"
+#   endif
+#   ifndef PS2_DATA_DDR
+#       error "PS2_DATA_DDR has to be defined"
+#   endif
+#   ifndef PS2_DATA_BIT
+#       error "PS2_DATA_BIT has to be defined"
+#   endif
+#   ifndef PS2_USART_INIT
+#       error "PS2_USART_INIT has to be defined"
+#   endif
+#   ifndef PS2_USART_RX_INT_ON
+#       error "PS2_USART_RX_INT_ON has to be defined"
+#   endif
+#   ifndef PS2_USART_RX_POLL_ON
+#       error "PS2_USART_RX_POLL_ON has to be defined"
+#   endif
+#   ifndef PS2_USART_OFF
+#       error "PS2_USART_OFF has to be defined"
+#   endif
+#   ifndef PS2_USART_RX_READY
+#       error "PS2_USART_RX_READY has to be defined"
+#   endif
+#   ifndef PS2_USART_RX_DATA
+#       error "PS2_USART_RX_DATA has to be defined"
+#   endif
+#   ifndef PS2_USART_ERROR
+#       error "PS2_USART_ERROR has to be defined"
+#   endif
+#   ifndef PS2_USART_RX_VECT
+#       error "PS2_USART_RX_VECT has to be defined"
+#   endif
+#endif
+
+
 #endif
\ No newline at end of file