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Diffstat (limited to 'net')
-rw-r--r--net/bluetooth/hci_core.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 7c88f5f8359..14f56e5031b 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -49,10 +49,25 @@ DEFINE_RWLOCK(hci_cb_list_lock);
static DEFINE_IDA(hci_index_ida);
/* ---- HCI notifications ---- */
+static ATOMIC_NOTIFIER_HEAD(hci_notifier);
+
+int hci_register_notifier(struct notifier_block *nb)
+{
+ return atomic_notifier_chain_register(&hci_notifier, nb);
+}
+
+int hci_unregister_notifier(struct notifier_block *nb)
+{
+ return atomic_notifier_chain_unregister(&hci_notifier, nb);
+}
static void hci_notify(struct hci_dev *hdev, int event)
{
hci_sock_dev_event(hdev, event);
+
+ if (event == HCI_DEV_REG || event == HCI_DEV_UNREG
+ || event == HCI_DEV_WRITE)
+ atomic_notifier_call_chain(&hci_notifier, event, hdev);
}
/* ---- HCI requests ---- */
@@ -2593,6 +2608,8 @@ static int hci_send_frame(struct sk_buff *skb)
/* Get rid of skb owner, prior to sending to the driver. */
skb_orphan(skb);
+ hci_notify(hdev, HCI_DEV_WRITE);
+
return hdev->send(skb);
}