1 files changed, 1 insertions, 0 deletions
diff --git a/src/linux/gpio.h b/src/linux/gpio.h
index b18e5d3d..8d878597 100644
--- a/src/linux/gpio.h
+++ b/src/linux/gpio.h
@@ -23,6 +23,7 @@ struct spi_config {
     int fd;
 };
 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);