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-rw-r--r--src/drivers/px4io/px4io_serial.cpp4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/drivers/px4io/px4io_serial.cpp b/src/drivers/px4io/px4io_serial.cpp
index 6a0b4d33f..840b96f5b 100644
--- a/src/drivers/px4io/px4io_serial.cpp
+++ b/src/drivers/px4io/px4io_serial.cpp
@@ -67,6 +67,8 @@
#include <modules/px4iofirmware/protocol.h>
+#ifdef PX4IO_SERIAL_BASE
+
device::Device *PX4IO_serial_interface();
/* serial register accessors */
@@ -667,3 +669,5 @@ PX4IO_serial::_abort_dma()
stm32_dmastop(_tx_dma);
stm32_dmastop(_rx_dma);
}
+
+#endif /* PX4IO_SERIAL_BASE */ \ No newline at end of file