From 562fcc246ebe31ade6e1be08585673b9b2785498 Mon Sep 17 00:00:00 2001 From: Andrzej Kaczmarek Date: Wed, 29 Aug 2012 10:02:09 +0200 Subject: [PATCH] Bluetooth: mgmt: Fix enabling LE while powered off When new BT USB adapter is plugged in it's configured while still being powered off (HCI_AUTO_OFF flag is set), thus Set LE will only set dev_flags but won't write changes to controller. As a result it's not possible to start device discovery session on LE controller as it uses interleaved discovery which requires LE Supported Host flag in extended features. This patch ensures HCI Write LE Host Supported is sent when Set Powered is called to power on controller and clear HCI_AUTO_OFF flag. Signed-off-by: Andrzej Kaczmarek Cc: stable@vger.kernel.org Acked-by: Johan Hedberg Signed-off-by: Gustavo Padovan --- net/bluetooth/mgmt.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index f943bbfc9c61..eba022de3c20 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -2881,6 +2881,16 @@ int mgmt_powered(struct hci_dev *hdev, u8 powered) hci_send_cmd(hdev, HCI_OP_WRITE_SSP_MODE, 1, &ssp); } + if (test_bit(HCI_LE_ENABLED, &hdev->dev_flags)) { + struct hci_cp_write_le_host_supported cp; + + cp.le = 1; + cp.simul = !!(hdev->features[6] & LMP_SIMUL_LE_BR); + + hci_send_cmd(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED, + sizeof(cp), &cp); + } + update_class(hdev); update_name(hdev, hdev->dev_name); update_eir(hdev); -- 2.39.5