1 files changed, 2 insertions, 2 deletions
diff --git a/libhw/w5500.c b/libhw/w5500.c
index 5a9a718..2c130f5 100644
--- a/libhw/w5500.c
+++ b/libhw/w5500.c
@@ -333,10 +333,10 @@ static void w5500_intrhandler(uint gpio, uint32_t LM_UNUSED(event_mask)) {
 }
 
 void _w5500_init(struct w5500 *chip,
-                 implements_spi *spi, uint pin_intr, uint pin_reset,
+                 lo_interface spi spi, uint pin_intr, uint pin_reset,
                  struct net_eth_addr addr) {
 	assert(chip);
-	assert(spi);
+	assert(!LO_IS_NULL(spi));
 
 	/* Initialize the data structures.  */
 	*chip = (struct w5500){