diff --git a/sys/dev/iicbus/iicbb.c b/sys/dev/iicbus/iicbb.c
index 7fa80c18250..ac10ceed286 100644
--- a/sys/dev/iicbus/iicbb.c
+++ b/sys/dev/iicbus/iicbb.c
@@ -94,6 +94,7 @@ static device_method_t iicbb_methods[] = {
 	DEVMETHOD(iicbus_write,		iicbb_write),
 	DEVMETHOD(iicbus_read,		iicbb_read),
 	DEVMETHOD(iicbus_reset,		iicbb_reset),
+	DEVMETHOD(iicbus_transfer,	iicbus_transfer_gen),
 
 	{ 0, 0 }
 };
@@ -421,6 +422,7 @@ DRIVER_MODULE(iicbb, ixpiic, iicbb_driver, iicbb_devclass, 0, 0);
 DRIVER_MODULE(iicbb, lpbb, iicbb_driver, iicbb_devclass, 0, 0);
 DRIVER_MODULE(iicbb, viapm, iicbb_driver, iicbb_devclass, 0, 0);
 DRIVER_MODULE(iicbb, cxm_iic, iicbb_driver, iicbb_devclass, 0, 0);
+DRIVER_MODULE(iicbb, at91_bbiic, iicbb_driver, iicbb_devclass, 0, 0);
 
 MODULE_DEPEND(iicbb, iicbus, IICBUS_MINVER, IICBUS_PREFVER, IICBUS_MAXVER);
 MODULE_VERSION(iicbb, IICBB_MODVER);
diff --git a/sys/dev/iicbus/iiconf.c b/sys/dev/iicbus/iiconf.c
index c9124af69e9..7401820bdfa 100644
--- a/sys/dev/iicbus/iiconf.c
+++ b/sys/dev/iicbus/iiconf.c
@@ -29,6 +29,7 @@ __FBSDID("$FreeBSD$");
 
 #include <sys/param.h>
 #include <sys/systm.h>
+#include <sys/malloc.h>
 #include <sys/module.h>
 #include <sys/bus.h>
 
@@ -356,13 +357,16 @@ iicbus_transfer(device_t bus, struct iic_msg *msgs, uint32_t nmsgs)
  * buffer addresses.
  */
 int
-iicbus_transfer_gen(device_t bus, struct iic_msg *msgs, uint32_t nmsgs)
+iicbus_transfer_gen(device_t dev, struct iic_msg *msgs, uint32_t nmsgs)
 {
-	int i, error, max, lenread, lenwrote;
+	int i, error, lenread, lenwrote, nkid;
+	device_t *children, bus;
 
-	for (i = 0, max = 0; i < nmsgs; i++)
-		if (max < msgs[i].len)
-			max = msgs[i].len;
+	device_get_children(dev, &children, &nkid);
+	if (nkid != 1)
+		return EIO;
+	bus = children[0];
+	free(children, M_TEMP);
 	for (i = 0, error = 0; i < nmsgs && error == 0; i++) {
 		if (msgs[i].flags & IIC_M_RD)
 			error = iicbus_block_read(bus, msgs[i].slave,