diff --git a/hw/i2c.h b/hw/i2c.h
index 5f93b9b..f297237 100644
--- a/hw/i2c.h
+++ b/hw/i2c.h
@@ -84,4 +84,8 @@
 void tmp105_reset(i2c_slave *i2c);
 void tmp105_set(i2c_slave *i2c, int temp);
 
+/* lm832x.c */
+struct i2c_slave *lm8323_init(i2c_bus *bus, qemu_irq nirq);
+void lm832x_key_event(struct i2c_slave *i2c, int key, int state);
+
 #endif