2 files changed, 22 insertions, 7 deletions
diff --git a/include/hw/i2c/i2c.h b/include/hw/i2c/i2c.h
index 24e95d0155..d727379b48 100644
--- a/include/hw/i2c/i2c.h
+++ b/include/hw/i2c/i2c.h
@@ -25,8 +25,7 @@ typedef struct I2CSlave I2CSlave;
 #define I2C_SLAVE_GET_CLASS(obj) \
      OBJECT_GET_CLASS(I2CSlaveClass, (obj), TYPE_I2C_SLAVE)
 
-typedef struct I2CSlaveClass
-{
+typedef struct I2CSlaveClass {
     DeviceClass parent_class;
 
     /* Callbacks provided by the device.  */
@@ -50,14 +49,30 @@ typedef struct I2CSlaveClass
     int (*event)(I2CSlave *s, enum i2c_event event);
 } I2CSlaveClass;
 
-struct I2CSlave
-{
+struct I2CSlave {
     DeviceState qdev;
 
     /* Remaining fields for internal use by the I2C code.  */
     uint8_t address;
 };
 
+#define TYPE_I2C_BUS "i2c-bus"
+#define I2C_BUS(obj) OBJECT_CHECK(I2CBus, (obj), TYPE_I2C_BUS)
+
+typedef struct I2CNode I2CNode;
+
+struct I2CNode {
+    I2CSlave *elt;
+    QLIST_ENTRY(I2CNode) next;
+};
+
+struct I2CBus {
+    BusState qbus;
+    QLIST_HEAD(, I2CNode) current_devs;
+    uint8_t saved_address;
+    bool broadcast;
+};
+
 I2CBus *i2c_init_bus(DeviceState *parent, const char *name);
 void i2c_set_slave_address(I2CSlave *dev, uint8_t address);
 int i2c_bus_busy(I2CBus *bus);
diff --git a/include/hw/register.h b/include/hw/register.h
index de2414e6b4..5796584588 100644
--- a/include/hw/register.h
+++ b/include/hw/register.h
@@ -34,7 +34,7 @@ typedef struct RegisterInfoArray RegisterInfoArray;
  * immediately before the actual write. The returned value is what is written,
  * giving the handler a chance to modify the written value.
  * @post_write: Post write callback. Passed the written value. Most write side
- * effects should be implemented here.
+ * effects should be implemented here. This is called during device reset.
  *
  * @post_read: Post read callback. Passes the value that is about to be returned
  * for a read. The return value from this function is what is ultimately read,
@@ -135,8 +135,8 @@ uint64_t register_read(RegisterInfo *reg, uint64_t re, const char* prefix,
                        bool debug);
 
 /**
- * reset a register
- * @reg: register to reset
+ * Resets a register. This will also call the post_write hook if it exists.
+ * @reg: The register to reset.
  */
 
 void register_reset(RegisterInfo *reg);