1 files changed, 2 insertions, 2 deletions
diff --git a/device.h b/device.h
index cf84e05..da65a37 100644
--- a/device.h
+++ b/device.h
@@ -29,8 +29,8 @@ struct device {
 
 	int (*init)(struct device *dev);
 	bool (*is_dev_addr)(struct device *dev, uint32_t addr);
-	size_t (*read)(struct device *dev, uint32_t addr, uint32_t *data, size_t count);
-	size_t (*write)(struct device *dev, uint32_t addr, uint32_t *data, size_t count);
+	size_t (*read)(struct device *dev, uint32_t addr, uint8_t *data, size_t count);
+	size_t (*write)(struct device *dev, uint32_t addr, uint8_t *data, size_t count);
 	bool (*has_irq)(struct device *dev);
 	void (*simulate)(struct device *dev);