2 files changed, 6 insertions, 0 deletions
diff --git a/src/stm32f1/gpio.c b/src/stm32f1/gpio.c
index ed507496..832febd8 100644
--- a/src/stm32f1/gpio.c
+++ b/src/stm32f1/gpio.c
@@ -301,6 +301,11 @@ spi_setup(uint32_t bus, uint8_t mode, uint32_t rate)
 }
 
 void
+spi_prepare(struct spi_config config)
+{
+}
+
+void
 spi_transfer(struct spi_config config, uint8_t receive_data,
              uint8_t len, uint8_t *data)
 {
diff --git a/src/stm32f1/gpio.h b/src/stm32f1/gpio.h
index 8c2a00ca..c5f0775e 100644
--- a/src/stm32f1/gpio.h
+++ b/src/stm32f1/gpio.h
@@ -34,6 +34,7 @@ struct spi_config {
     SPI_TypeDef config;
 };
 struct spi_config spi_setup(uint32_t bus, uint8_t mode, uint32_t rate);
+void spi_prepare(struct spi_config config);
 void spi_transfer(struct spi_config config, uint8_t receive_data,
                   uint8_t len, uint8_t *data);