Hi Loic,
> This function allows to send a HCI command without expecting any
> controller event/response in return.
>
> Signed-off-by: Loic Poulain <loic.poulain@xxxxxxxxxx>
> ---
> include/net/bluetooth/hci_core.h | 2 ++
> net/bluetooth/hci_core.c | 17 +++++++++++++++++
> 2 files changed, 19 insertions(+)
>
> diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
> index b619a19..d48a7df 100644
> --- a/include/net/bluetooth/hci_core.h
> +++ b/include/net/bluetooth/hci_core.h
> @@ -1393,6 +1393,8 @@ struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
> const void *param, u32 timeout);
> struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen,
> const void *param, u8 event, u32 timeout);
> +int __hci_cmd_sync_noev(struct hci_dev *hdev, u16 opcode, u32 plen,
> + const void *param);
>
> int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen,
> const void *param);
> diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
> index 40d260f..2831c4e 100644
> --- a/net/bluetooth/hci_core.c
> +++ b/net/bluetooth/hci_core.c
> @@ -3459,6 +3459,23 @@ struct sk_buff *hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
> }
> EXPORT_SYMBOL(hci_cmd_sync);
>
> +int __hci_cmd_sync_noev(struct hci_dev *hdev, u16 opcode, u32 plen,
> + const void *param)
> +{
> + struct sk_buff *skb = hci_prepare_cmd(hdev, opcode, plen, param);
> +
> + if (!skb) {
> + bt_dev_err(hdev, "no memory for command (opcode 0x%4.4x)",
> + opcode);
> + return -ENOMEM;
> + }
> +
> + hci_send_frame(hdev, skb);
> +
> + return 0;
> +}
> +EXPORT_SYMBOL(__hci_cmd_sync_noev);
so this is not a _sync command. You are not waiting for the completion. So this is more like __hci_cmd_send or __hci_cmd_submit. I am also debating if this should be limited to vendor OGF only, meaning it should throw an error for all others.
Regards
Marcel
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