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| author | Jaikumar Ganesh <jaikumar@google.com> | 2011-05-23 18:06:04 -0700 |
|---|---|---|
| committer | Gustavo F. Padovan <padovan@profusion.mobi> | 2011-06-08 16:58:19 -0300 |
| commit | 14b12d0b98f87162b7e9e93dde66d1af97886567 (patch) | |
| tree | 3ee2430863ad890b9b36ee4172fadc5147a01ad0 /net/bluetooth/hci_core.c | |
| parent | 96d97a673d42408c0f960cc54d44be7629343bce (diff) | |
| download | lwn-14b12d0b98f87162b7e9e93dde66d1af97886567.tar.gz lwn-14b12d0b98f87162b7e9e93dde66d1af97886567.zip | |
Bluetooth: Add BT_POWER L2CAP socket option.
Add BT_POWER socket option used to control the power
characteristics of the underlying ACL link. When the remote end
has put the link in sniff mode and the host stack wants to send
data we need need to explicitly exit sniff mode to work well with
certain devices (For example, A2DP on Plantronics Voyager 855).
However, this causes problems with HID devices.
Hence, moving into active mode when sending data, irrespective
of who set the sniff mode has been made as a socket option. By
default, we will move into active mode. HID devices can set the
L2CAP socket option to prevent this from happening.
Currently, this has been implemented for L2CAP sockets. This has been
tested with incoming and outgoing L2CAP sockets for HID and A2DP.
Based on discussions on linux-bluetooth and patches submitted by
Andrei Emeltchenko.
Signed-off-by: Jaikumar Ganesh <jaikumar@google.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
Diffstat (limited to 'net/bluetooth/hci_core.c')
| -rw-r--r-- | net/bluetooth/hci_core.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index ff6b784c58c5..e14e8a1cb04e 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -1969,7 +1969,7 @@ static inline void hci_sched_acl(struct hci_dev *hdev) while (quote-- && (skb = skb_dequeue(&conn->data_q))) { BT_DBG("skb %p len %d", skb, skb->len); - hci_conn_enter_active_mode(conn); + hci_conn_enter_active_mode(conn, bt_cb(skb)->force_active); hci_send_frame(skb); hdev->acl_last_tx = jiffies; @@ -2108,7 +2108,7 @@ static inline void hci_acldata_packet(struct hci_dev *hdev, struct sk_buff *skb) if (conn) { register struct hci_proto *hp; - hci_conn_enter_active_mode(conn); + hci_conn_enter_active_mode(conn, bt_cb(skb)->force_active); /* Send to upper protocol */ hp = hci_proto[HCI_PROTO_L2CAP]; |