Add configurable debug logging

carolhook/ledbd.c

@@ -94,7 +94,7 @@ static HRESULT ledbd_handle_irp_locked(struct irp *irp)
     }
 
     for (;;) {
-#if 0
+#if defined(LOG_CAROL_LED_BD)
         dprintf("LED Board: TX Buffer:\n");
         dump_iobuf(&ledbd_uart.written);
 #endif
@@ -165,4 +165,4 @@ static HRESULT ledbd_req_unkF0(uint8_t cmd)
     iobuf_write(&ledbd_uart.readable, resp, 16);
 
     return S_OK;
-}
+}