Hi Mat,
> The A2MP fixed channel bit is only set when high-speed mode is enabled.
>
> Signed-off-by: Mat Martineau <mathewm@xxxxxxxxxxxxxx>
> ---
> net/bluetooth/l2cap_core.c | 6 +++++-
> 1 files changed, 5 insertions(+), 1 deletions(-)
>
> diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
> index 67f0ab6..f250392 100644
> --- a/net/bluetooth/l2cap_core.c
> +++ b/net/bluetooth/l2cap_core.c
> @@ -60,7 +60,7 @@ int disable_ertm;
> int enable_hs;
>
> static u32 l2cap_feat_mask = L2CAP_FEAT_FIXED_CHAN;
> -static u8 l2cap_fixed_chan[8] = { 0x02, };
> +static u8 l2cap_fixed_chan[8] = { L2CAP_FC_L2CAP, };
>
> static LIST_HEAD(chan_list);
> static DEFINE_RWLOCK(chan_list_lock);
> @@ -2975,6 +2975,10 @@ static inline int l2cap_information_req(struct l2cap_conn *conn, struct l2cap_cm
> } else if (type == L2CAP_IT_FIXED_CHAN) {
> u8 buf[12];
> struct l2cap_info_rsp *rsp = (struct l2cap_info_rsp *) buf;
> +
> + if (enable_hs)
> + l2cap_fixed_chan[0] |= L2CAP_FC_A2MP;
> +
> rsp->type = cpu_to_le16(L2CAP_IT_FIXED_CHAN);
> rsp->result = cpu_to_le16(L2CAP_IR_SUCCESS);
> memcpy(buf + 4, l2cap_fixed_chan, 8);
doing it this way is a bit sneaky actually. Since it does not really
allow disabling HS once you enabled it.
Maybe doing feature enabling/disabling (and also for LE) is better
handled via /sys/kernel/debug/bluetooth/enable_hs.
Regards
Marcel
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