It seems to work to treat indication as notify.
But sometimes bluetoothd is crashing:
Program received signal SIGSEGV, Segmentation fault.
register_notify_cb (att_ecode=0, user_data=0x7b1d60) at src/gatt-client.c:1114
1114 if (!chrc->notifying) {
(gdb) bt
#0 register_notify_cb (att_ecode=0, user_data=0x7b1d60)
at src/gatt-client.c:1114
#1 0x000000000049c97d in complete_notify_request (data=0x719a60)
at src/shared/gatt-client.c:1137
#2 enable_ccc_callback (opcode=<optimized out>, pdu=<optimized out>,
length=<optimized out>, user_data=0x719a60)
at src/shared/gatt-client.c:1219
#3 0x00000000004998da in handle_rsp (pdu_len=<optimized out>,
pdu=0x7b1af1 "\022\020", opcode=19 '\023', att=0x7b1db0)
at src/shared/att.c:697
#4 can_read_data (io=<optimized out>, user_data=0x7b1db0)
at src/shared/att.c:869
#5 0x00000000004a2245 in watch_callback (channel=<optimized out>,
cond=<optimized out>, user_data=<optimized out>)
at src/shared/io-glib.c:170
#6 0x00007ffff7b1ace5 in g_main_context_dispatch ()
from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7 0x00007ffff7b1b048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8 0x00007ffff7b1b30a in g_main_loop_run ()
from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9 0x000000000040b674 in main (argc=1, argv=0x7fffffffe638) at src/main.c:687
On Wed, Mar 16, 2016 at 6:03 AM, Luiz Augusto von Dentz
<luiz.dentz@xxxxxxxxx> wrote:
> Hi Mark,
>
> On Wed, Mar 16, 2016 at 12:59 AM, Mark Rages <markrages@xxxxxxxxx> wrote:
>> Hi,
>>
>> The GattCharacteristic1 d-bus interface has methods for StartNotify
>> and StopNotify.
>>
>> But I don't see corresponding methods for requesting Indications
>>
>> Is there a way to do this? Should I write to the CCCD directly? How
>> do the indications arrive on the d-bus?
>
> Indicate would probably need to be a method since it does require a
> reply, but for now you can just treat it as a notification whereas
> BlueZ will be responsible for confirming so nothing else need to be
> done by the application. The code can actually distinguished between
> the 2:
>
> /* Try to enable notifications and/or indications based on
> * whatever the characteristic supports.
> */
> if (notify_data->chrc->properties & BT_GATT_CHRC_PROP_NOTIFY)
> pdu[2] = 0x01;
>
> if (notify_data->chrc->properties & BT_GATT_CHRC_PROP_INDICATE)
> pdu[2] |= 0x02;
>
>
> --
> Luiz Augusto von Dentz
--
Regards,
Mark
markrages@gmail
--
To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
