Hi Luiz
On Fri, 1 Apr 2022 at 22:50, Luiz Augusto von Dentz
<luiz.dentz@xxxxxxxxx> wrote:
>
> Hi Adam,
>
> On Fri, Apr 1, 2022 at 1:12 PM Adam Pigg <adam@xxxxxxxxxxx> wrote:
> >
> > Hi Luiz
> >
> > On Mon, 28 Mar 2022 at 17:37, Adam Pigg <adam@xxxxxxxxxxx> wrote:
> > >
> > > Hi Luiz
> > >
> > > On Wed, 23 Mar 2022 at 19:57, Adam Pigg <adam@xxxxxxxxxxx> wrote:
> > > >
> > > > Hi Luiz
> > > >
> > > > Thanks for having the patience with me on this....
> > > >
> > > > On Wed, 23 Mar 2022 at 19:46, Luiz Augusto von Dentz
> > > > <luiz.dentz@xxxxxxxxx> wrote:
> > > > >
> > > > > Hi Adam,
> > > > >
> > > > > On Wed, Mar 23, 2022 at 7:46 AM Adam Pigg <adam@xxxxxxxxxxx> wrote:
> > > > > >
> > > > > > On Wed, 23 Mar 2022 at 13:36, Adam Pigg <adam@xxxxxxxxxxx> wrote:
> > > > > > >
> > > > > > > Hi Luiz
> > > > > > >
> > > > > > > On Wed, 23 Mar 2022 at 09:11, Adam Pigg <adam@xxxxxxxxxxx> wrote:
> > > > > > > >
> > > > > > > > Hi Luiz
> > > > > > > >
> > > > > > > > Good that you clearly know more about this than me!...
> > > > > > > >
> > > > > > > > On Tue, 22 Mar 2022 at 23:44, Luiz Augusto von Dentz
> > > > > > > > <luiz.dentz@xxxxxxxxx> wrote:
> > > > > > > > >
> > > > > > > > > Hi Adam,
> > > > > > > > >
> > > > > > > > > On Tue, Mar 22, 2022 at 4:35 PM Luiz Augusto von Dentz
> > > > > > > > > <luiz.dentz@xxxxxxxxx> wrote:
> > > > > > > > > >
> > > > > > > > > > Hi Adam,
> > > > > > > > > >
> > > > > > > > > > On Tue, Mar 22, 2022 at 4:09 PM Adam Pigg <adam@xxxxxxxxxxx> wrote:
> > > > > > > > > > >
> > > > > > > > > > > Thanks Luiz
> > > > > > > > > > >
> > > > > > > > > > > On Tue, 22 Mar 2022 at 21:35, Luiz Augusto von Dentz
> > > > > > > > > > > <luiz.dentz@xxxxxxxxx> wrote:
> > > > > > > > > > > >
> > > > > > > > > > > > Hi Adam,
> > > > > > > > > > > >
> > > > > > > > > > > > On Tue, Mar 22, 2022 at 3:40 AM Adam Pigg <adam@xxxxxxxxxxx> wrote:
> > > > > > > > > > > > >
> > > > > > > > > > > > > Hi Luiz
> > > > > > > > > > > > >
> > > > > > > > > > > > >
> > > > > > > > > > > > > On Tue, 22 Mar 2022 at 07:55, Adam Pigg <adam@xxxxxxxxxxx> wrote:
> > > > > > > > > > > > > >
> > > > > > > > > > > > > > Hi Luiz
> > > > > > > > > > > > > >
> > > > > > > > > > > > > > On Tue, 22 Mar 2022 at 00:44, Luiz Augusto von Dentz
> > > > > > > > > > > > > > <luiz.dentz@xxxxxxxxx> wrote:
> > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > Hi Adam,
> > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > On Mon, Mar 21, 2022 at 4:03 PM Adam Pigg <adam@xxxxxxxxxxx> wrote:
> > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > Hi
> > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > A bit of background, I write a linux desktop/mobile app called
> > > > > > > > > > > > > > > > Amazfish which interfaces with several watches over BLE using their
> > > > > > > > > > > > > > > > GATT services. To do this, I use the bluez dbus api (technically a
> > > > > > > > > > > > > > > > thin wrapper around it I wrote called qble
> > > > > > > > > > > > > > > > https://github.com/piggz/qble)
> > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > All has been good so far, I support several generations of
> > > > > > > > > > > > > > > > Huami/Amazfit watches, as well as the open source Pinetime and
> > > > > > > > > > > > > > > > Bangle.js. For the Amazfit watches, i have implementations for older
> > > > > > > > > > > > > > > > devies such as the Bip, and newer ones such as the GTS.
> > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > Much of the reverse engineering comes from the Android Gadget Bridge
> > > > > > > > > > > > > > > > project, which supports many more devices.
> > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > My community of users donated to buy me a newer device called a GTR2,
> > > > > > > > > > > > > > > > which, according to the GB devs uses the same protocol as the slightly
> > > > > > > > > > > > > > > > older GTS, and the packet captures I have from Android would support
> > > > > > > > > > > > > > > > this.
> > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > But this is where my trouble starts with Bluez, my existing
> > > > > > > > > > > > > > > > implementation doesnt work at all. Normally, after a connection, I
> > > > > > > > > > > > > > > > would wait for the ServicesResolved signal, which happens pretty fast
> > > > > > > > > > > > > > > > on all other devices, but on the GTR2, it takes about 30 seconds, by
> > > > > > > > > > > > > > > > which time, the watch has disconnected. (i get a disconnected signal
> > > > > > > > > > > > > > > > immediately after the ServicesResolved signal)
> > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > To rule out my code, I have tried several things:
> > > > > > > > > > > > > > > > Gatttool
> > > > > > > > > > > > > > > > With gattool, i can connect, get the services, enable a notification,
> > > > > > > > > > > > > > > > write a value and get the expected results seemingly fine
> > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > Python-gatt (using the bluez dbus api)
> > > > > > > > > > > > > > > > Im unable to iterate the services, like my app, it takes 30 seconds to
> > > > > > > > > > > > > > > > get the signal and then swiftly disconnects
> > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > Gattlib (https://github.com/labapart/gattlib)
> > > > > > > > > > > > > > > > Gattlib is interesting as it appears to have "borrowed" much of its
> > > > > > > > > > > > > > > > code directly from bluez. When built against the system bluez, if the
> > > > > > > > > > > > > > > > version is > 5.42, it will use the dbus api. When I do this, again im
> > > > > > > > > > > > > > > > unable to list services on the watch. However, if I edit the build to
> > > > > > > > > > > > > > > > force it to use its internal gatt implementation, which appears to be
> > > > > > > > > > > > > > > > the same one used by gatttool, then, it IS able to interrogate the
> > > > > > > > > > > > > > > > watch.
> > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > I have attached 3 files
> > > > > > > > > > > > > > > > 1. test python program which should print services, and associated btmon
> > > > > > > > > > > > > > > > 2. btmon output while using gatttool
> > > > > > > > > > > > > > > > 3. btmon output running gattlib discover example
> > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > Note, other than discovery, I havnt been able to get gattlib to
> > > > > > > > > > > > > > > > read/write/notify!
> > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > It seems as though I may be triggering a bug in the bluez dbus api?
> > > > > > > > > > > > > > > > Can anyone suggest anything?
> > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > What version are you using? I would first try with the latest to see
> > > > > > > > > > > > > > > if that something already fixed.
> > > > > > > > > > > > > > >
> > > > > > > > > > > > > > >
> > > > > > > > > > > > > > Im using 5.63 already, which is the latest tag (on opensuse tumbleweed)
> > > > > > > > > > > > > >
> > > > > > > > > > > > > > I'll also try bluetoothctl and attach logs using that, though I
> > > > > > > > > > > > > > suspect it will behave the same as the python library and my own
> > > > > > > > > > > > > > library.
> > > > > > > > > > > > > >
> > > > > > > > > > > > >
> > > > > > > > > > > > > Attached is the output of btmon while using bluetoothctl
> > > > > > > > > > > > >
> > > > > > > > > > > > > bluetoothctl behaves the same as my lib and python, it is unable to
> > > > > > > > > > > > > list services, and after a while, emits the ServicesResolved and
> > > > > > > > > > > > > disconnected messages at the same time. Im sure it should be able to
> > > > > > > > > > > > > list the services immediately after connect just like gatttool can.
> > > > > > > > > > > >
> > > > > > > > > > > > Looks like there is multiple rounds of MTU Exchange, not sure if that
> > > > > > > > > > > > is actually a problem but the spec does say it shall only be sent once
> > > > > > > > > > > > per client:
> > > > > > > > > > > >
> > > > > > > > > > > > BLUETOOTH CORE SPECIFICATION Version 5.3 | Vol 3, Part F
> > > > > > > > > > > > page 1424:
> > > > > > > > > > > >
> > > > > > > > > > > > This request shall only be sent once during a connection by the client.
> > > > > > > > > > > >
> > > > > > > > > > > > There is also no response to frame #30:
> > > > > > > > > > > > < ACL Data TX: Handle 3585 flags 0x00 dlen 7
> > > > > > > > > > > >
> > > > > > > > > > > > #30 [hci0] 26.641557
> > > > > > > > > > > > ATT: Read Request (0x0a) len 2
> > > > > > > > > > > > Handle: 0x0018
> > > > > > > > > > > >
> > > > > > > > > > > > So after 30 seconds (ATT timeout) without receiving any response it disconnects:
> > > > > > > > > > > >
> > > > > > > > > > >
> > > > > > > > > > > So, the verdict is that the watch isnt acting to spec right?
> > > > > > > > > > >
> > > > > > > > > > > Why does gatttool work ok, is it a completely different implementation?
> > > > > > > > > > >
> > > > > > > > > > > I understand if wouldnt be to spec, but would it be possible to make
> > > > > > > > > > > bluez more resilient to devices not acting to spec? Android and iOS
> > > > > > > > > > > work just fine in this regard, so could bluez handle mis-behaving
> > > > > > > > > > > devices more flexibly?
> > > > > > > > > >
> > > > > > > > > > That I can't really explain, perhaps it is timing related, something
> > > > > > > > > > with Exchange MTU since it appears to stop the device from responding
> > > > > > > > > > when it happens a second time.
> > > > > > > > > >
> > > > > > > > > > > Do you have any suggestions for things I could try? I looked for
> > > > > > > > > > > similar lines in the working gatttool log, and it doesnt have anything
> > > > > > > > > > > like that, seems to send flags 0x00 dlen 9 (instead of 7?) ... how is
> > > > > > > > > > > it behaving differently?
> > > > > > > > > >
> > > > > > > > > > Not sure really, does Android/iOS Exchange the MTU? Maybe we need a
> > > > > > > > > > timer to start it later or perhaps the problem first response to
> > > > > > > > > > exchange MTU does actually use the final_mtu which makes the watch to
> > > > > > > > > > trigger yet another exchange to have both rx and tx MTU the same so
> > > > > > > > > > try with the following change:
> > > > > > > > > >
> > > > > > > > > > diff --git a/src/shared/gatt-server.c b/src/shared/gatt-server.c
> > > > > > > > > > index 2adb4afbf..d326782bf 100644
> > > > > > > > > > --- a/src/shared/gatt-server.c
> > > > > > > > > > +++ b/src/shared/gatt-server.c
> > > > > > > > > > @@ -1499,7 +1499,7 @@ static void exchange_mtu_cb(struct bt_att_chan
> > > > > > > > > > *chan, uint8_t opcode,
> > > > > > > > > > final_mtu = MAX(MIN(client_rx_mtu, server->mtu), BT_ATT_DEFAULT_LE_MTU);
> > > > > > > > > >
> > > > > > > > > > /* Respond with the server MTU */
> > > > > > > > > > - put_le16(server->mtu, rsp_pdu);
> > > > > > > > > > + put_le16(final_mtu, rsp_pdu);
> > > > > > > > > > bt_att_chan_send_rsp(chan, BT_ATT_OP_MTU_RSP, rsp_pdu, 2);
> > > > > > > > > >
> > > > > > > > > > /* Set MTU to be the minimum */
> > > > > > > > >
> > > > > > > > > Hmm Im not sure if this will work since the peripheral seems to
> > > > > > > > > respond different values 252 vs 247, also the spec does say that:
> > > > > > > > >
> > > > > > > > > 'The Server Rx MTU parameter shall be set to the *maximum size* of the
> > > > > > > > > Attribute protocol PDU that the server can receive.
> > > > > > > > > The server and client shall set ATT_MTU to the *minimum of the Client Rx MTU
> > > > > > > > > and the Server Rx MTU*. The size is the same to ensure that a client can
> > > > > > > > > correctly detect the final packet of a long attribute read.'
> > > > > > > > >
> > > > > > > > > So my interpretation is that the minimum is calculated after the
> > > > > > > > > Exchange is complete so it doesn't require the Server MTU to be
> > > > > > > > > limited by the Client MTU, anyway if Android and iOS does apply the
> > > > > > > > > minimum logic before responding we can do the same.
> > > > > > > > >
> > > > > > > >
> > > > > > > > Maybe it will help if I attach an android packet capture....
> > > > > > > >
> > > > > > > > The attachedhttps://marc.info/?l=linux-bluetooth&m=164799909020040&w=2
> > > > > > > > log can be opened in Wireshark, and to my untrained eye, it looks like
> > > > > > > > the MTU negotiation is at packets 451 and 452, and 247 is used?
> > > > > > > >
> > > > > > > > Ill try and get the proposed patch built and see how it behaves
> > > > > > >
> > > > > > > Attached if the btmon and bluetoothctl. It doesnt seem to be there quite yet.
> > > > > > >
> > > > > > > There was one point before i applied the patch where bluetoothctl
> > > > > > > seemed to list the attributes quickly, but i havnt been able to
> > > > > > > reproduce that again with or without the patch.
> > > > > > >
> > > > > >
> > > > > > For completeness, also attached the output of my program and btmon
> > > > > >
> > > > > > My program should connect, wait for resolved signal, then read a char,
> > > > > > enable some notifications, and do a write. You can see the 30 second
> > > > > > wait between connect, resolved, and quickly followed by a disconnect.
> > > > >
> > > > >
> > > > > < ACL Data TX: Handle 3585 flags 0x00 dlen 7
> > > > >
> > > > > #22 [hci0] 12.507730
> > > > > ATT: Exchange MTU Request (0x02) len 2
> > > > > Client RX MTU: 517
> > > > > > ACL Data RX: Handle 3585 flags 0x02 dlen 7 #23 [hci0] 12.556081
> > > > > ATT: Exchange MTU Request (0x02) len 2
> > > > > Client RX MTU: 247
> > > > > < ACL Data TX: Handle 3585 flags 0x00 dlen 7
> > > > >
> > > > > #24 [hci0] 12.556256
> > > > > ATT: Exchange MTU Response (0x03) len 2
> > > > > Server RX MTU: 247
> > > > > > ACL Data RX: Handle 3585 flags 0x02 dlen 7 #27 [hci0] 12.655972
> > > > > ATT: Exchange MTU Response (0x03) len 2
> > > > > Server RX MTU: 252
> > > > >
> > > > > So we are now responding with 247 and the peripheral responds with 252
> > > > > to our request :/, so we would need to probably delay our request or
> > > > > something, that said we are the central so I really which we don't
> > > > > have to do it since that would penalize well behaving devices, could
> > > > > we perhaps inform the vendor about these issues? I'd considered this
> > > > > to be really bad behavior from the remote side since they are not
> > > > > following the spec in many respects as even their MTU changes from
> > > > > request to response and it does multiple rounds of Exchange MTU and
> > > > > stop responding while doing it.
> > > > >
> > > >
> > > > I can certainly look into how to contact Huami/Amazfit ... I wouldnt
> > > > count on a response though!
> > > >
> > > > I see you looked at the android log already.
> > > >
> > > > Do you have an idea for a patch I could try out? Im deep in this now
> > > > anyway, and over-wrote my system bluez :D
> > > >
> > > > Its strange how they have messed up this generation of device as all
> > > > the older ones work fine, and I imagine they must just build on the
> > > > old code base.
> > > >
> > >
> > > I have submitted a support request to Amazfit, describing the issue
> > > and linking to the details in the ML... maybe they will read it!
> > >
> > > Do you think there is anything I can try to make bluez work in the
> > > mean time, even just on my own device?
> > >
> > I had another go at making this work before attempting to write my own
> > gatt lib (!) and i seem to have got it to work, though I dont know if
> > it will be acceptable to bluez, or if there is another way.
> >
> > Probably easiest with the diff:
> > diff --git a/profiles/gap/gas.c b/profiles/gap/gas.c
> > index ea3249be9..701677e0a 100644
> > --- a/profiles/gap/gas.c
> > +++ b/profiles/gap/gas.c
> > @@ -142,8 +142,8 @@ static void read_appearance_cb(bool success,
> > uint8_t att_ecode,
> >
> > static void handle_appearance(struct gas *gas, uint16_t value_handle)
> > {
> > - if (!bt_gatt_client_read_value(gas->client, value_handle,
> > - read_appearance_cb, gas, NULL))
> > + //if (!bt_gatt_client_read_value(gas->client, value_handle,
> > + // read_appearance_cb, gas, NULL))
> > DBG("Failed to send request to read appearance");
>
> Does disabling the read make it work? Does it stop the second MTU exchange?
>
> > }
> >
> > diff --git a/src/shared/gatt-server.c b/src/shared/gatt-server.c
> > index 776e5ce2b..ac0fac1fc 100644
> > --- a/src/shared/gatt-server.c
> > +++ b/src/shared/gatt-server.c
> > @@ -1498,7 +1498,8 @@ static void exchange_mtu_cb(struct bt_att_chan
> > *chan, uint8_t opcode,
> > final_mtu = MAX(MIN(client_rx_mtu, server->mtu), BT_ATT_DEFAULT_LE_MTU);
> >
> > /* Respond with the server MTU */
> > - put_le16(server->mtu, rsp_pdu);
> > + //put_le16(server->mtu, rsp_pdu);
> > + put_le16(final_mtu, rsp_pdu);
> > bt_att_chan_send_rsp(chan, BT_ATT_OP_MTU_RSP, rsp_pdu, 2);
> >
> > /* Set MTU to be the minimum */
> >
> > I was running bluetoothd with -n -d, and noticed that the read to the
> > appearance was failing, so, I commented it out. The read to the name
> > works ok and happens just prior to reading the appearance.
> >
> > I gather it only reads the appearance if the char exists, so, i dont
> > know why that fail, however I dont see 2a01 in the list of
> > services/characteristics, which is the appearance one right?
>
> #define GATT_CHARAC_APPEARANCE 0x2A01
>
> You don't see it on bluetoothd logs or over D-Bus? The latter may not
> contain all the attributes since some are claimed.
>
Gathered some logs this morning, see attached.
So, 2A01 is listed in the bluetoothd debug output, so, I guess its a
fault that it cant be read? It is not listed in the output of
bluetoothctl list-attributes (also attached) so I could not read the
value using that tool.
Without any other changes, my own lib/app was able to connect to the
watch and start reading data seemingly fine, though I did get an
unexpected disconnected after reading a large amount of step/activity
data, but that may be unrelated, read/write and notify were all
working.
Could some quirk be used to get around this issue?
> > Any thoughts?
> >
> > Cheers
> >
> >
> >
> > > Thanks
> > >
> > > > > >
> > > > > >
> > > > > > > Thanks
> > > > > > >
> > > > > > >
> > > > > > > >
> > > > > > > > Thanks
> > > > > > > >
> > > > > > > > > >
> > > > > > > > > > >
> > > > > > > > > > > > < HCI Command: Disconnect (0x01|0x0006) plen 3
> > > > > > > > > > > >
> > > > > > > > > > > > #48 [hci0] 58.673128
> > > > > > > > > > > > Handle: 3585
> > > > > > > > > > > > Reason: Remote User Terminated Connection (0x13)
> > > > > > > > > > > >
> > > > > > > > > > > > > Thanks
> > > > > > > > > > > > >
> > > > > > > > > > > > >
> > > > > > > > > > > > > > > --
> > > > > > > > > > > > > > > Luiz Augusto von Dentz
> > > > > > > > > > > >
> > > > > > > > > > > >
> > > > > > > > > > > >
> > > > > > > > > > > > --
> > > > > > > > > > > > Luiz Augusto von Dentz
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > --
> > > > > > > > > > Luiz Augusto von Dentz
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > --
> > > > > > > > > Luiz Augusto von Dentz
> > > > >
> > > > >
> > > > >
> > > > > --
> > > > > Luiz Augusto von Dentz
>
>
>
> --
> Luiz Augusto von Dentz
Bluetoothctl:
piggz@adam-laptop ~ $ bluetoothctl
Agent registered
[bluetooth]# connect CD:1B:C3:94:5B:77
Attempting to connect to CD:1B:C3:94:5B:77
[CHG] Device CD:1B:C3:94:5B:77 Connected: yes
Connection successful
[NEW] Primary Service (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0001
00001801-0000-1000-8000-00805f9b34fb
Generic Attribute Profile
[NEW] Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0001/char0002
00002a05-0000-1000-8000-00805f9b34fb
Service Changed
[NEW] Descriptor (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0001/char0002/desc0004
00002902-0000-1000-8000-00805f9b34fb
Client Characteristic Configuration
[NEW] Primary Service (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0028
0000180a-0000-1000-8000-00805f9b34fb
Device Information
[NEW] Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0028/char0029
00002a25-0000-1000-8000-00805f9b34fb
Serial Number String
[NEW] Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0028/char002b
00002a27-0000-1000-8000-00805f9b34fb
Hardware Revision String
[NEW] Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0028/char002d
00002a28-0000-1000-8000-00805f9b34fb
Software Revision String
[NEW] Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0028/char002f
00002a23-0000-1000-8000-00805f9b34fb
System ID
[NEW] Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0028/char0031
00002a50-0000-1000-8000-00805f9b34fb
PnP ID
[NEW] Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0028/char0033
00000014-0000-3512-2118-0009af100700
Vendor specific
[NEW] Descriptor (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0028/char0033/desc0035
00002902-0000-1000-8000-00805f9b34fb
Client Characteristic Configuration
[NEW] Primary Service (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0038
00001530-0000-3512-2118-0009af100700
Vendor specific
[NEW] Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0038/char0039
00001531-0000-3512-2118-0009af100700
Vendor specific
[NEW] Descriptor (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0038/char0039/desc003b
00002902-0000-1000-8000-00805f9b34fb
Client Characteristic Configuration
[NEW] Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0038/char003c
00001532-0000-3512-2118-0009af100700
Vendor specific
[NEW] Primary Service (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040
0000fee0-0000-1000-8000-00805f9b34fb
Anhui Huami Information Technology Co., Ltd.
[NEW] Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0041
00002a2b-0000-1000-8000-00805f9b34fb
Current Time
[NEW] Descriptor (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0041/desc0043
00002902-0000-1000-8000-00805f9b34fb
Client Characteristic Configuration
[NEW] Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0044
00002a04-0000-1000-8000-00805f9b34fb
Peripheral Preferred Connection Parameters
[NEW] Descriptor (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0044/desc0046
00002902-0000-1000-8000-00805f9b34fb
Client Characteristic Configuration
[NEW] Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0047
00000001-0000-3512-2118-0009af100700
Vendor specific
[NEW] Descriptor (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0047/desc0049
00002902-0000-1000-8000-00805f9b34fb
Client Characteristic Configuration
[NEW] Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char004a
00000002-0000-3512-2118-0009af100700
Vendor specific
[NEW] Descriptor (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char004a/desc004c
00002902-0000-1000-8000-00805f9b34fb
Client Characteristic Configuration
[NEW] Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char004d
00000003-0000-3512-2118-0009af100700
Vendor specific
[NEW] Descriptor (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char004d/desc004f
00002902-0000-1000-8000-00805f9b34fb
Client Characteristic Configuration
[NEW] Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0050
00000004-0000-3512-2118-0009af100700
Vendor specific
[NEW] Descriptor (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0050/desc0052
00002902-0000-1000-8000-00805f9b34fb
Client Characteristic Configuration
[NEW] Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0053
00000005-0000-3512-2118-0009af100700
Vendor specific
[NEW] Descriptor (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0053/desc0055
00002902-0000-1000-8000-00805f9b34fb
Client Characteristic Configuration
[NEW] Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0056
00000006-0000-3512-2118-0009af100700
Vendor specific
[NEW] Descriptor (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0056/desc0058
00002902-0000-1000-8000-00805f9b34fb
Client Characteristic Configuration
[NEW] Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0059
00000007-0000-3512-2118-0009af100700
Vendor specific
[NEW] Descriptor (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0059/desc005b
00002902-0000-1000-8000-00805f9b34fb
Client Characteristic Configuration
[NEW] Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char005f
00000010-0000-3512-2118-0009af100700
Vendor specific
[NEW] Descriptor (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char005f/desc0061
00002902-0000-1000-8000-00805f9b34fb
Client Characteristic Configuration
[NEW] Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0062
0000000e-0000-3512-2118-0009af100700
Vendor specific
[NEW] Descriptor (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0062/desc0064
00002901-0000-1000-8000-00805f9b34fb
Characteristic User Description
[NEW] Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0065
00000020-0000-3512-2118-0009af100700
Vendor specific
[NEW] Descriptor (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0065/desc0067
00002902-0000-1000-8000-00805f9b34fb
Client Characteristic Configuration
[NEW] Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0068
00000016-0000-3512-2118-0009af100700
Vendor specific
[NEW] Descriptor (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0068/desc006a
00002902-0000-1000-8000-00805f9b34fb
Client Characteristic Configuration
[NEW] Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char006b
00000017-0000-3512-2118-0009af100700
Vendor specific
[NEW] Descriptor (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char006b/desc006d
00002902-0000-1000-8000-00805f9b34fb
Client Characteristic Configuration
[NEW] Primary Service (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0070
0000fee1-0000-1000-8000-00805f9b34fb
Anhui Huami Information Technology Co., Ltd.
[NEW] Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0070/char0071
00000009-0000-3512-2118-0009af100700
Vendor specific
[NEW] Descriptor (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0070/char0071/desc0073
00002902-0000-1000-8000-00805f9b34fb
Client Characteristic Configuration
[NEW] Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0070/char0074
0000fedd-0000-1000-8000-00805f9b34fb
Jawbone
[NEW] Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0070/char0076
0000fede-0000-1000-8000-00805f9b34fb
Coin, Inc.
[NEW] Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0070/char0078
0000fedf-0000-1000-8000-00805f9b34fb
Design SHIFT
[NEW] Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0070/char007a
0000fed0-0000-1000-8000-00805f9b34fb
Apple, Inc.
[NEW] Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0070/char007c
0000fed1-0000-1000-8000-00805f9b34fb
Apple, Inc.
[NEW] Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0070/char007e
0000fed2-0000-1000-8000-00805f9b34fb
Apple, Inc.
[NEW] Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0070/char0080
0000fed3-0000-1000-8000-00805f9b34fb
Apple, Inc.
[NEW] Primary Service (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0084
0000180d-0000-1000-8000-00805f9b34fb
Heart Rate
[NEW] Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0084/char0085
00002a37-0000-1000-8000-00805f9b34fb
Heart Rate Measurement
[NEW] Descriptor (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0084/char0085/desc0087
00002902-0000-1000-8000-00805f9b34fb
Client Characteristic Configuration
[NEW] Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0084/char0088
00002a39-0000-1000-8000-00805f9b34fb
Heart Rate Control Point
[NEW] Primary Service (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service008c
00001811-0000-1000-8000-00805f9b34fb
Alert Notification Service
[NEW] Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service008c/char008d
00002a46-0000-1000-8000-00805f9b34fb
New Alert
[NEW] Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service008c/char008f
00002a44-0000-1000-8000-00805f9b34fb
Alert Notification Control Point
[NEW] Descriptor (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service008c/char008f/desc0091
00002902-0000-1000-8000-00805f9b34fb
Client Characteristic Configuration
[NEW] Primary Service (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0094
00001802-0000-1000-8000-00805f9b34fb
Immediate Alert
[NEW] Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0094/char0095
00002a06-0000-1000-8000-00805f9b34fb
Alert Level
[NEW] Primary Service (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0099
00003802-0000-1000-8000-00805f9b34fb
Unknown
[NEW] Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0099/char009a
00004a02-0000-1000-8000-00805f9b34fb
Unknown
[NEW] Descriptor (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0099/char009a/desc009c
00002902-0000-1000-8000-00805f9b34fb
Client Characteristic Configuration
[CHG] Device CD:1B:C3:94:5B:77 ServicesResolved: yes
[CHG] Device CD:1B:C3:94:5B:77 Paired: yes
[CHG] Device CD:1B:C3:94:5B:77 ServicesResolved: no
[CHG] Device CD:1B:C3:94:5B:77 Connected: no
[CHG] Controller DC:53:60:51:00:C6 Powered: no
[CHG] Controller DC:53:60:51:00:C6 Discovering: no
Agent unregistered
----------
Btmon:
piggz@adam-laptop ~ $ sudo btmon
Bluetooth monitor ver 5.63
= Note: Linux version 5.16.15-1-default (x86_64) 0.071909
= Note: Bluetooth subsystem version 2.22 0.071917
= New Index: DC:53:60:51:00:C6 (Primary,USB,hci0) [hci0] 0.071919
= Open Index: DC:53:60:51:00:C6 [hci0] 0.071920
= Index Info: DC:53:60:51:00:C6 (Intel Corp.) [hci0] 0.071922
@ MGMT Open: bluetoothd (privileged) version 1.21 {0x0001} 0.071924
< HCI Command: LE Set Scan Parameters (0x08|0x000b) plen 7 #1 [hci0] 5.554956
Type: Passive (0x00)
Interval: 60.000 msec (0x0060)
Window: 60.000 msec (0x0060)
Own address type: Public (0x00)
Filter policy: Accept all advertisement (0x00)
> HCI Event: Command Complete (0x0e) plen 4 #2 [hci0] 5.672957
LE Set Scan Parameters (0x08|0x000b) ncmd 1
Status: Success (0x00)
< HCI Command: LE Set Scan Enable (0x08|0x000c) plen 2 #3 [hci0] 5.673031
Scanning: Enabled (0x01)
Filter duplicates: Enabled (0x01)
> HCI Event: Command Complete (0x0e) plen 4 #4 [hci0] 5.673943
LE Set Scan Enable (0x08|0x000c) ncmd 2
Status: Success (0x00)
> HCI Event: LE Meta Event (0x3e) plen 40 #5 [hci0] 5.823989
LE Advertising Report (0x02)
Num reports: 1
Event type: Scannable undirected - ADV_SCAN_IND (0x02)
Address type: Random (0x01)
Address: 73:BC:BB:C2:C1:11 (Resolvable)
Data length: 28
16-bit Service UUIDs (complete): 1 entry
Google (0xfe9f)
Service Data (UUID 0xfe9f): 0000000000000000000000000000000000000000
RSSI: -79 dBm (0xb1)
> HCI Event: LE Meta Event (0x3e) plen 43 #6 [hci0] 6.393001
LE Advertising Report (0x02)
Num reports: 1
Event type: Connectable undirected - ADV_IND (0x00)
Address type: Random (0x01)
Address: CD:1B:C3:94:5B:77 (Static)
Data length: 31
Flags: 0x02
LE General Discoverable Mode
Company: Anhui Huami Information Technology Co., Ltd. (343)
Data: 02ffffffffffffffffffffffffffffffff03cd1bc3945b77
RSSI: -59 dBm (0xc5)
< HCI Command: LE Set Scan Enable (0x08|0x000c) plen 2 #7 [hci0] 6.393109
Scanning: Disabled (0x00)
Filter duplicates: Disabled (0x00)
> HCI Event: LE Meta Event (0x3e) plen 20 #8 [hci0] 6.403041
LE Advertising Report (0x02)
Num reports: 1
Event type: Non connectable undirected - ADV_NONCONN_IND (0x03)
Address type: Random (0x01)
Address: C5:10:64:0D:50:4A (Static)
Data length: 8
Company: Apple, Inc. (76)
Type: Unknown (18)
Data: 0001
RSSI: -71 dBm (0xb9)
> HCI Event: Command Complete (0x0e) plen 4 #9 [hci0] 6.403953
LE Set Scan Enable (0x08|0x000c) ncmd 2
Status: Success (0x00)
< HCI Command: LE Create Connection (0x08|0x000d) plen 25 #10 [hci0] 6.404039
Scan interval: 60.000 msec (0x0060)
Scan window: 60.000 msec (0x0060)
Filter policy: Accept list is not used (0x00)
Peer address type: Random (0x01)
Peer address: CD:1B:C3:94:5B:77 (Static)
Own address type: Public (0x00)
Min connection interval: 30.00 msec (0x0018)
Max connection interval: 50.00 msec (0x0028)
Connection latency: 0 (0x0000)
Supervision timeout: 420 msec (0x002a)
Min connection length: 0.000 msec (0x0000)
Max connection length: 0.000 msec (0x0000)
> HCI Event: Command Status (0x0f) plen 4 #11 [hci0] 6.404959
LE Create Connection (0x08|0x000d) ncmd 2
Status: Success (0x00)
> HCI Event: LE Meta Event (0x3e) plen 19 #12 [hci0] 7.246016
LE Connection Complete (0x01)
Status: Success (0x00)
Handle: 3585
Role: Central (0x00)
Peer address type: Random (0x01)
Peer address: CD:1B:C3:94:5B:77 (Static)
Connection interval: 50.00 msec (0x0028)
Connection latency: 0 (0x0000)
Supervision timeout: 420 msec (0x002a)
Central clock accuracy: 0x00
@ MGMT Event: Device Connected (0x000b) plen 44 {0x0001} [hci0] 7.246124
LE Address: CD:1B:C3:94:5B:77 (Static)
Flags: 0x00000008
Connection Locally Initiated
Data length: 31
Flags: 0x02
LE General Discoverable Mode
Company: Anhui Huami Information Technology Co., Ltd. (343)
Data: 02ffffffffffffffffffffffffffffffff03cd1bc3945b77
< HCI Command: LE Read Remote Used Features (0x08|0x0016) plen 2 #13 [hci0] 7.246321
Handle: 3585
> HCI Event: Command Status (0x0f) plen 4 #14 [hci0] 7.246939
LE Read Remote Used Features (0x08|0x0016) ncmd 1
Status: Success (0x00)
> HCI Event: LE Meta Event (0x3e) plen 12 #15 [hci0] 7.256967
LE Read Remote Used Features (0x04)
Status: Success (0x00)
Handle: 3585
Features: 0x01 0x00 0x00 0x00 0x00 0x00 0x00 0x00
LE Encryption
< HCI Command: LE Start Encryption (0x08|0x0019) plen 28 #16 [hci0] 7.257078
Handle: 3585
Random number: 0xdb9e4a1d99763254
Encrypted diversifier: 0xe783
Long term key: c5b2108775aa3ea40219fffed1172f59
> HCI Event: Command Status (0x0f) plen 4 #17 [hci0] 7.257950
LE Start Encryption (0x08|0x0019) ncmd 1
Status: Success (0x00)
> HCI Event: Encryption Change (0x08) plen 4 #18 [hci0] 7.706014
Status: Success (0x00)
Handle: 3585
Encryption: Enabled with AES-CCM (0x01)
< ACL Data TX: Handle 3585 flags 0x00 dlen 7 #19 [hci0] 7.737373
ATT: Exchange MTU Request (0x02) len 2
Client RX MTU: 517
> ACL Data RX: Handle 3585 flags 0x02 dlen 7 #20 [hci0] 7.755716
ATT: Exchange MTU Request (0x02) len 2
Client RX MTU: 247
< ACL Data TX: Handle 3585 flags 0x00 dlen 7 #21 [hci0] 7.756422
ATT: Exchange MTU Response (0x03) len 2
Server RX MTU: 247
> HCI Event: Number of Completed Packets (0x13) plen 5 #22 [hci0] 7.756936
Num handles: 1
Handle: 3585
Count: 1
> HCI Event: Number of Completed Packets (0x13) plen 5 #23 [hci0] 7.806972
Num handles: 1
Handle: 3585
Count: 1
> ACL Data RX: Handle 3585 flags 0x02 dlen 7 #24 [hci0] 7.855784
ATT: Exchange MTU Response (0x03) len 2
Server RX MTU: 252
< ACL Data TX: Handle 3585 flags 0x00 dlen 7 #25 [hci0] 7.856454
ATT: Read Request (0x0a) len 2
Handle: 0x0032
> HCI Event: Number of Completed Packets (0x13) plen 5 #26 [hci0] 7.906136
Num handles: 1
Handle: 3585
Count: 1
> ACL Data RX: Handle 3585 flags 0x02 dlen 12 #27 [hci0] 7.955840
ATT: Read Response (0x0b) len 7
Value: 01570140000101
< ACL Data TX: Handle 3585 flags 0x00 dlen 7 #28 [hci0] 7.956301
ATT: Read Request (0x0a) len 2
Handle: 0x0016
> HCI Event: Number of Completed Packets (0x13) plen 5 #29 [hci0] 8.006029
Num handles: 1
Handle: 3585
Count: 1
> ACL Data RX: Handle 3585 flags 0x02 dlen 19 #30 [hci0] 8.055802
ATT: Read Response (0x0b) len 14
Value: 416d617a66697420475452203200
< ACL Data TX: Handle 3585 flags 0x00 dlen 11 #31 [hci0] 8.056627
ATT: Read By Type Request (0x08) len 6
Handle range: 0x0001-0xffff
Attribute type: Server Supported Features (0x2b3a)
> HCI Event: Number of Completed Packets (0x13) plen 5 #32 [hci0] 8.105969
Num handles: 1
Handle: 3585
Count: 1
> ACL Data RX: Handle 3585 flags 0x02 dlen 9 #33 [hci0] 8.155796
ATT: Error Response (0x01) len 4
Read By Type Request (0x08)
Handle: 0x0001
Error: Attribute Not Found (0x0a)
< ACL Data TX: Handle 3585 flags 0x00 dlen 11 #34 [hci0] 8.156152
ATT: Read By Group Type Request (0x10) len 6
Handle range: 0x0001-0xffff
Attribute group type: Primary Service (0x2800)
> HCI Event: Number of Completed Packets (0x13) plen 5 #35 [hci0] 8.206189
Num handles: 1
Handle: 3585
Count: 1
> ACL Data RX: Handle 3585 flags 0x02 dlen 24 #36 [hci0] 8.255774
ATT: Read By Group Type Response (0x11) len 19
Attribute data length: 6
Attribute group list: 3 entries
Handle range: 0x0001-0x0004
UUID: Generic Attribute Profile (0x1801)
Handle range: 0x0014-0x0018
UUID: Generic Access Profile (0x1800)
Handle range: 0x0028-0x0035
UUID: Device Information (0x180a)
< ACL Data TX: Handle 3585 flags 0x00 dlen 11 #37 [hci0] 8.256136
ATT: Read By Group Type Request (0x10) len 6
Handle range: 0x0036-0xffff
Attribute group type: Primary Service (0x2800)
> HCI Event: Number of Completed Packets (0x13) plen 5 #38 [hci0] 8.306159
Num handles: 1
Handle: 3585
Count: 1
> ACL Data RX: Handle 3585 flags 0x02 dlen 26 #39 [hci0] 8.355992
ATT: Read By Group Type Response (0x11) len 21
Attribute data length: 20
Attribute group list: 1 entry
Handle range: 0x0038-0x003d
UUID: Vendor specific (00001530-0000-3512-2118-0009af100700)
< ACL Data TX: Handle 3585 flags 0x00 dlen 11 #40 [hci0] 8.356424
ATT: Read By Group Type Request (0x10) len 6
Handle range: 0x003e-0xffff
Attribute group type: Primary Service (0x2800)
> HCI Event: Number of Completed Packets (0x13) plen 5 #41 [hci0] 8.405942
Num handles: 1
Handle: 3585
Count: 1
> ACL Data RX: Handle 3585 flags 0x02 dlen 27 #42 [hci0] 8.455825
> ACL Data RX: Handle 3585 flags 0x01 dlen 15 #43 [hci0] 8.456671
ATT: Read By Group Type Response (0x11) len 37
Attribute data length: 6
Attribute group list: 6 entries
Handle range: 0x0040-0x006d
UUID: Anhui Huami Information Technology Co., Ltd. (0xfee0)
Handle range: 0x0070-0x0081
UUID: Anhui Huami Information Technology Co., Ltd. (0xfee1)
Handle range: 0x0084-0x0089
UUID: Heart Rate (0x180d)
Handle range: 0x008c-0x0091
UUID: Alert Notification Service (0x1811)
Handle range: 0x0094-0x0096
UUID: Immediate Alert (0x1802)
Handle range: 0x0099-0x009c
UUID: Unknown (0x3802)
< ACL Data TX: Handle 3585 flags 0x00 dlen 11 #44 [hci0] 8.456936
ATT: Read By Group Type Request (0x10) len 6
Handle range: 0x009d-0xffff
Attribute group type: Primary Service (0x2800)
> HCI Event: Number of Completed Packets (0x13) plen 5 #45 [hci0] 8.506032
Num handles: 1
Handle: 3585
Count: 1
> ACL Data RX: Handle 3585 flags 0x02 dlen 9 #46 [hci0] 8.555667
ATT: Error Response (0x01) len 4
Read By Group Type Request (0x10)
Handle: 0x009d
Error: Attribute Not Found (0x0a)
< ACL Data TX: Handle 3585 flags 0x00 dlen 9 #47 [hci0] 8.597592
ATT: Write Request (0x12) len 4
Handle: 0x0004
Data: 0200
> HCI Event: Number of Completed Packets (0x13) plen 5 #48 [hci0] 8.605932
Num handles: 1
Handle: 3585
Count: 1
> ACL Data RX: Handle 3585 flags 0x02 dlen 5 #49 [hci0] 8.655563
ATT: Write Response (0x13) len 0
> ACL Data RX: Handle 3585 flags 0x02 dlen 11 #50 [hci0] 11.287516
ATT: Read By Type Request (0x08) len 6
Handle range: 0x0001-0xffff
Attribute type: Characteristic (0x2803)
< ACL Data TX: Handle 3585 flags 0x00 dlen 27 #51 [hci0] 11.288352
< ACL Data TX: Handle 3585 flags 0x01 dlen 27 #52 [hci0] 11.288383
< ACL Data TX: Handle 3585 flags 0x01 dlen 8 #53 [hci0] 11.288393
ATT: Read By Type Response (0x09) len 57
Attribute data length: 7
Attribute data list: 8 entries
Handle: 0x0002
Value: 020300002a
Handle: 0x0004
Value: 020500012a
Handle: 0x0006
Value: 020700a62a
Handle: 0x0009
Value: 200a00052a
Handle: 0x000c
Value: 0a0d00292b
Handle: 0x000e
Value: 020f002a2b
Handle: 0x0010
Value: 0211003a2b
Handle: 0x0013
Value: 021400502a
> HCI Event: Number of Completed Packets (0x13) plen 5 #54 [hci0] 11.305948
Num handles: 1
Handle: 3585
Count: 1
> HCI Event: Number of Completed Packets (0x13) plen 5 #55 [hci0] 11.306942
Num handles: 1
Handle: 3585
Count: 1
> HCI Event: Number of Completed Packets (0x13) plen 5 #56 [hci0] 11.307935
Num handles: 1
Handle: 3585
Count: 1
> ACL Data RX: Handle 3585 flags 0x02 dlen 11 #57 [hci0] 11.355838
ATT: Read By Type Request (0x08) len 6
Handle range: 0x0014-0xffff
Attribute type: Characteristic (0x2803)
< ACL Data TX: Handle 3585 flags 0x00 dlen 9 #58 [hci0] 11.356663
ATT: Error Response (0x01) len 4
Read By Type Request (0x08)
Handle: 0x0014
Error: Attribute Not Found (0x0a)
> HCI Event: Number of Completed Packets (0x13) plen 5 #59 [hci0] 11.406156
Num handles: 1
Handle: 3585
Count: 1
> ACL Data RX: Handle 3585 flags 0x02 dlen 11 #60 [hci0] 11.455775
ATT: Read By Type Request (0x08) len 6
Handle range: 0x0001-0xffff
Attribute type: Device Name (0x2a00)
< ACL Data TX: Handle 3585 flags 0x00 dlen 18 #61 [hci0] 11.456514
ATT: Read By Type Response (0x09) len 13
Attribute data length: 12
Attribute data list: 1 entry
Handle: 0x0003
Value: 426c75655a20352e3633
> HCI Event: Number of Completed Packets (0x13) plen 5 #62 [hci0] 11.505953
Num handles: 1
Handle: 3585
Count: 1
----------
Bluetoothd:
bluetoothd[8809]: src/agent.c:agent_ref() 0x55f63ef92e30: ref=1
bluetoothd[8809]: src/agent.c:register_agent() agent :1.3789
bluetoothd[8809]: src/device.c:device_connect_le() Connection attempt to: CD:1B:C3:94:5B:77
bluetoothd[8809]: src/adapter.c:connected_callback() hci0 device CD:1B:C3:94:5B:77 connected eir_len 31
bluetoothd[8809]: attrib/gattrib.c:g_attrib_ref() 0x55f63ef91620: g_attrib_ref=1
bluetoothd[8809]: src/device.c:load_gatt_db() Restoring CD:1B:C3:94:5B:77 gatt database from file
bluetoothd[8809]: src/device.c:load_service() loading service: 0x0001, end: 0x0004, uuid: 00001801-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_service() loading service: 0x0014, end: 0x0018, uuid: 00001800-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_service() loading service: 0x0028, end: 0x0035, uuid: 0000180a-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_service() loading service: 0x0038, end: 0x003d, uuid: 00001530-0000-3512-2118-0009af100700
bluetoothd[8809]: src/device.c:load_service() loading service: 0x0040, end: 0x006d, uuid: 0000fee0-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_service() loading service: 0x0070, end: 0x0081, uuid: 0000fee1-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_service() loading service: 0x0084, end: 0x0089, uuid: 0000180d-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_service() loading service: 0x008c, end: 0x0091, uuid: 00001811-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_service() loading service: 0x0094, end: 0x0096, uuid: 00001802-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_service() loading service: 0x0099, end: 0x009c, uuid: 00003802-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_chrc() loading characteristic handle: 0x0002, value handle: 0x0003, properties 0x0022 value: uuid: 00002a05-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_desc() loading descriptor handle: 0x0004, value: 0x0000, value uuid: 00002902-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_chrc() loading characteristic handle: 0x0015, value handle: 0x0016, properties 0x0002 value: uuid: 00002a00-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_chrc() loading characteristic handle: 0x0017, value handle: 0x0018, properties 0x0002 value: uuid: 00002a01-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_chrc() loading characteristic handle: 0x0029, value handle: 0x002a, properties 0x0002 value: uuid: 00002a25-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_chrc() loading characteristic handle: 0x002b, value handle: 0x002c, properties 0x0002 value: uuid: 00002a27-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_chrc() loading characteristic handle: 0x002d, value handle: 0x002e, properties 0x0002 value: uuid: 00002a28-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_chrc() loading characteristic handle: 0x002f, value handle: 0x0030, properties 0x0002 value: uuid: 00002a23-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_chrc() loading characteristic handle: 0x0031, value handle: 0x0032, properties 0x0002 value: uuid: 00002a50-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_chrc() loading characteristic handle: 0x0033, value handle: 0x0034, properties 0x0014 value: uuid: 00000014-0000-3512-2118-0009af100700
bluetoothd[8809]: src/device.c:load_desc() loading descriptor handle: 0x0035, value: 0x0000, value uuid: 00002902-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_chrc() loading characteristic handle: 0x0039, value handle: 0x003a, properties 0x0018 value: uuid: 00001531-0000-3512-2118-0009af100700
bluetoothd[8809]: src/device.c:load_desc() loading descriptor handle: 0x003b, value: 0x0000, value uuid: 00002902-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_chrc() loading characteristic handle: 0x003c, value handle: 0x003d, properties 0x0004 value: uuid: 00001532-0000-3512-2118-0009af100700
bluetoothd[8809]: src/device.c:load_chrc() loading characteristic handle: 0x0041, value handle: 0x0042, properties 0x001a value: uuid: 00002a2b-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_desc() loading descriptor handle: 0x0043, value: 0x0000, value uuid: 00002902-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_chrc() loading characteristic handle: 0x0044, value handle: 0x0045, properties 0x001a value: uuid: 00002a04-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_desc() loading descriptor handle: 0x0046, value: 0x0000, value uuid: 00002902-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_chrc() loading characteristic handle: 0x0047, value handle: 0x0048, properties 0x0014 value: uuid: 00000001-0000-3512-2118-0009af100700
bluetoothd[8809]: src/device.c:load_desc() loading descriptor handle: 0x0049, value: 0x0000, value uuid: 00002902-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_chrc() loading characteristic handle: 0x004a, value handle: 0x004b, properties 0x0010 value: uuid: 00000002-0000-3512-2118-0009af100700
bluetoothd[8809]: src/device.c:load_desc() loading descriptor handle: 0x004c, value: 0x0000, value uuid: 00002902-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_chrc() loading characteristic handle: 0x004d, value handle: 0x004e, properties 0x0014 value: uuid: 00000003-0000-3512-2118-0009af100700
bluetoothd[8809]: src/device.c:load_desc() loading descriptor handle: 0x004f, value: 0x0000, value uuid: 00002902-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_chrc() loading characteristic handle: 0x0050, value handle: 0x0051, properties 0x0014 value: uuid: 00000004-0000-3512-2118-0009af100700
bluetoothd[8809]: src/device.c:load_desc() loading descriptor handle: 0x0052, value: 0x0000, value uuid: 00002902-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_chrc() loading characteristic handle: 0x0053, value handle: 0x0054, properties 0x0010 value: uuid: 00000005-0000-3512-2118-0009af100700
bluetoothd[8809]: src/device.c:load_desc() loading descriptor handle: 0x0055, value: 0x0000, value uuid: 00002902-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_chrc() loading characteristic handle: 0x0056, value handle: 0x0057, properties 0x0012 value: uuid: 00000006-0000-3512-2118-0009af100700
bluetoothd[8809]: src/device.c:load_desc() loading descriptor handle: 0x0058, value: 0x0000, value uuid: 00002902-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_chrc() loading characteristic handle: 0x0059, value handle: 0x005a, properties 0x0012 value: uuid: 00000007-0000-3512-2118-0009af100700
bluetoothd[8809]: src/device.c:load_desc() loading descriptor handle: 0x005b, value: 0x0000, value uuid: 00002902-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_chrc() loading characteristic handle: 0x005f, value handle: 0x0060, properties 0x0010 value: uuid: 00000010-0000-3512-2118-0009af100700
bluetoothd[8809]: src/device.c:load_desc() loading descriptor handle: 0x0061, value: 0x0000, value uuid: 00002902-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_chrc() loading characteristic handle: 0x0062, value handle: 0x0063, properties 0x0008 value: uuid: 0000000e-0000-3512-2118-0009af100700
bluetoothd[8809]: src/device.c:load_desc() loading descriptor handle: 0x0064, value: 0x0000, value uuid: 00002901-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_chrc() loading characteristic handle: 0x0065, value handle: 0x0066, properties 0x0016 value: uuid: 00000020-0000-3512-2118-0009af100700
bluetoothd[8809]: src/device.c:load_desc() loading descriptor handle: 0x0067, value: 0x0000, value uuid: 00002902-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_chrc() loading characteristic handle: 0x0068, value handle: 0x0069, properties 0x0014 value: uuid: 00000016-0000-3512-2118-0009af100700
bluetoothd[8809]: src/device.c:load_desc() loading descriptor handle: 0x006a, value: 0x0000, value uuid: 00002902-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_chrc() loading characteristic handle: 0x006b, value handle: 0x006c, properties 0x0014 value: uuid: 00000017-0000-3512-2118-0009af100700
bluetoothd[8809]: src/device.c:load_desc() loading descriptor handle: 0x006d, value: 0x0000, value uuid: 00002902-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_chrc() loading characteristic handle: 0x0071, value handle: 0x0072, properties 0x0016 value: uuid: 00000009-0000-3512-2118-0009af100700
bluetoothd[8809]: src/device.c:load_desc() loading descriptor handle: 0x0073, value: 0x0000, value uuid: 00002902-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_chrc() loading characteristic handle: 0x0074, value handle: 0x0075, properties 0x0008 value: uuid: 0000fedd-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_chrc() loading characteristic handle: 0x0076, value handle: 0x0077, properties 0x0002 value: uuid: 0000fede-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_chrc() loading characteristic handle: 0x0078, value handle: 0x0079, properties 0x0002 value: uuid: 0000fedf-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_chrc() loading characteristic handle: 0x007a, value handle: 0x007b, properties 0x000a value: uuid: 0000fed0-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_chrc() loading characteristic handle: 0x007c, value handle: 0x007d, properties 0x000a value: uuid: 0000fed1-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_chrc() loading characteristic handle: 0x007e, value handle: 0x007f, properties 0x0002 value: uuid: 0000fed2-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_chrc() loading characteristic handle: 0x0080, value handle: 0x0081, properties 0x000a value: uuid: 0000fed3-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_chrc() loading characteristic handle: 0x0085, value handle: 0x0086, properties 0x0010 value: uuid: 00002a37-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_desc() loading descriptor handle: 0x0087, value: 0x0000, value uuid: 00002902-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_chrc() loading characteristic handle: 0x0088, value handle: 0x0089, properties 0x000a value: uuid: 00002a39-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_chrc() loading characteristic handle: 0x008d, value handle: 0x008e, properties 0x000a value: uuid: 00002a46-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_chrc() loading characteristic handle: 0x008f, value handle: 0x0090, properties 0x001a value: uuid: 00002a44-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_desc() loading descriptor handle: 0x0091, value: 0x0000, value uuid: 00002902-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_chrc() loading characteristic handle: 0x0095, value handle: 0x0096, properties 0x0004 value: uuid: 00002a06-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_chrc() loading characteristic handle: 0x009a, value handle: 0x009b, properties 0x001a value: uuid: 00004a02-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:load_desc() loading descriptor handle: 0x009c, value: 0x0000, value uuid: 00002902-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: profiles/deviceinfo/deviceinfo.c:deviceinfo_accept() deviceinfo profile accept (CD:1B:C3:94:5B:77)
bluetoothd[8809]: profiles/deviceinfo/deviceinfo.c:handle_characteristic() Unsupported characteristic: 00002a25-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: profiles/deviceinfo/deviceinfo.c:handle_characteristic() Unsupported characteristic: 00002a27-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: profiles/deviceinfo/deviceinfo.c:handle_characteristic() Unsupported characteristic: 00002a28-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: profiles/deviceinfo/deviceinfo.c:handle_characteristic() Unsupported characteristic: 00002a23-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: profiles/deviceinfo/deviceinfo.c:handle_characteristic() Unsupported characteristic: 00000014-0000-3512-2118-0009af100700
bluetoothd[8809]: src/service.c:change_state() 0x55f63ef66280: device CD:1B:C3:94:5B:77 profile deviceinfo state changed: disconnected -> connected (0)
bluetoothd[8809]: profiles/gap/gas.c:gap_accept() GAP profile accept (CD:1B:C3:94:5B:77)
bluetoothd[8809]: profiles/gap/gas.c:handle_appearance() Failed to send request to read appearance
bluetoothd[8809]: src/service.c:change_state() 0x55f63ef693d0: device CD:1B:C3:94:5B:77 profile gap-profile state changed: disconnected -> connected (0)
bluetoothd[8809]: src/gatt-client.c:btd_gatt_client_connected() Device connected.
bluetoothd[8809]: src/device.c:gatt_debug() (chan 0x55f63ef770c0) ATT PDU received: 0x02
bluetoothd[8809]: src/device.c:gatt_debug() MTU exchange complete, with MTU: 247
bluetoothd[8809]: src/device.c:gatt_debug() MTU exchange complete, with MTU: 252
bluetoothd[8809]: profiles/gap/gas.c:read_device_name_cb() GAP Device Name: Amazfit GTR 2
bluetoothd[8809]: src/device.c:gatt_debug() Primary services found: 10
bluetoothd[8809]: src/device.c:gatt_debug() start: 0x0001, end: 0x0004, uuid: 00001801-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:gatt_debug() start: 0x0014, end: 0x0018, uuid: 00001800-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:gatt_debug() start: 0x0028, end: 0x0035, uuid: 0000180a-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:gatt_debug() start: 0x0038, end: 0x003d, uuid: 00001530-0000-3512-2118-0009af100700
bluetoothd[8809]: src/device.c:gatt_debug() start: 0x0040, end: 0x006d, uuid: 0000fee0-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:gatt_debug() start: 0x0070, end: 0x0081, uuid: 0000fee1-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:gatt_debug() start: 0x0084, end: 0x0089, uuid: 0000180d-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:gatt_debug() start: 0x008c, end: 0x0091, uuid: 00001811-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:gatt_debug() start: 0x0094, end: 0x0096, uuid: 00001802-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:gatt_debug() start: 0x0099, end: 0x009c, uuid: 00003802-0000-1000-8000-00805f9b34fb
bluetoothd[8809]: src/device.c:gatt_client_ready_cb() status: success, error: 10
bluetoothd[8809]: src/gatt-client.c:btd_gatt_client_ready() GATT client ready
bluetoothd[8809]: src/gatt-client.c:create_services() Exporting objects for GATT services: CD:1B:C3:94:5B:77
bluetoothd[8809]: src/gatt-client.c:service_create() Exported GATT service: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0001
bluetoothd[8809]: src/gatt-client.c:characteristic_create() Exported GATT characteristic: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0001/char0002
bluetoothd[8809]: src/gatt-client.c:descriptor_create() Exported GATT characteristic descriptor: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0001/char0002/desc0004
bluetoothd[8809]: src/gatt-client.c:service_create() Exported GATT service: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0028
bluetoothd[8809]: src/gatt-client.c:characteristic_create() Exported GATT characteristic: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0028/char0029
bluetoothd[8809]: src/gatt-client.c:characteristic_create() Exported GATT characteristic: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0028/char002b
bluetoothd[8809]: src/gatt-client.c:characteristic_create() Exported GATT characteristic: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0028/char002d
bluetoothd[8809]: src/gatt-client.c:characteristic_create() Exported GATT characteristic: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0028/char002f
bluetoothd[8809]: src/gatt-client.c:characteristic_create() Exported GATT characteristic: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0028/char0031
bluetoothd[8809]: src/gatt-client.c:characteristic_create() Exported GATT characteristic: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0028/char0033
bluetoothd[8809]: src/gatt-client.c:descriptor_create() Exported GATT characteristic descriptor: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0028/char0033/desc0035
bluetoothd[8809]: src/gatt-client.c:service_create() Exported GATT service: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0038
bluetoothd[8809]: src/gatt-client.c:characteristic_create() Exported GATT characteristic: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0038/char0039
bluetoothd[8809]: src/gatt-client.c:descriptor_create() Exported GATT characteristic descriptor: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0038/char0039/desc003b
bluetoothd[8809]: src/gatt-client.c:characteristic_create() Exported GATT characteristic: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0038/char003c
bluetoothd[8809]: src/gatt-client.c:service_create() Exported GATT service: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040
bluetoothd[8809]: src/gatt-client.c:characteristic_create() Exported GATT characteristic: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0041
bluetoothd[8809]: src/gatt-client.c:descriptor_create() Exported GATT characteristic descriptor: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0041/desc0043
bluetoothd[8809]: src/gatt-client.c:characteristic_create() Exported GATT characteristic: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0044
bluetoothd[8809]: src/gatt-client.c:descriptor_create() Exported GATT characteristic descriptor: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0044/desc0046
bluetoothd[8809]: src/gatt-client.c:characteristic_create() Exported GATT characteristic: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0047
bluetoothd[8809]: src/gatt-client.c:descriptor_create() Exported GATT characteristic descriptor: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0047/desc0049
bluetoothd[8809]: src/gatt-client.c:characteristic_create() Exported GATT characteristic: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char004a
bluetoothd[8809]: src/gatt-client.c:descriptor_create() Exported GATT characteristic descriptor: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char004a/desc004c
bluetoothd[8809]: src/gatt-client.c:characteristic_create() Exported GATT characteristic: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char004d
bluetoothd[8809]: src/gatt-client.c:descriptor_create() Exported GATT characteristic descriptor: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char004d/desc004f
bluetoothd[8809]: src/gatt-client.c:characteristic_create() Exported GATT characteristic: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0050
bluetoothd[8809]: src/gatt-client.c:descriptor_create() Exported GATT characteristic descriptor: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0050/desc0052
bluetoothd[8809]: src/gatt-client.c:characteristic_create() Exported GATT characteristic: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0053
bluetoothd[8809]: src/gatt-client.c:descriptor_create() Exported GATT characteristic descriptor: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0053/desc0055
bluetoothd[8809]: src/gatt-client.c:characteristic_create() Exported GATT characteristic: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0056
bluetoothd[8809]: src/gatt-client.c:descriptor_create() Exported GATT characteristic descriptor: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0056/desc0058
bluetoothd[8809]: src/gatt-client.c:characteristic_create() Exported GATT characteristic: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0059
bluetoothd[8809]: src/gatt-client.c:descriptor_create() Exported GATT characteristic descriptor: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0059/desc005b
bluetoothd[8809]: src/gatt-client.c:characteristic_create() Exported GATT characteristic: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char005f
bluetoothd[8809]: src/gatt-client.c:descriptor_create() Exported GATT characteristic descriptor: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char005f/desc0061
bluetoothd[8809]: src/gatt-client.c:characteristic_create() Exported GATT characteristic: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0062
bluetoothd[8809]: src/gatt-client.c:descriptor_create() Exported GATT characteristic descriptor: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0062/desc0064
bluetoothd[8809]: src/gatt-client.c:characteristic_create() Exported GATT characteristic: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0065
bluetoothd[8809]: src/gatt-client.c:descriptor_create() Exported GATT characteristic descriptor: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0065/desc0067
bluetoothd[8809]: src/gatt-client.c:characteristic_create() Exported GATT characteristic: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0068
bluetoothd[8809]: src/gatt-client.c:descriptor_create() Exported GATT characteristic descriptor: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0068/desc006a
bluetoothd[8809]: src/gatt-client.c:characteristic_create() Exported GATT characteristic: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char006b
bluetoothd[8809]: src/gatt-client.c:descriptor_create() Exported GATT characteristic descriptor: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char006b/desc006d
bluetoothd[8809]: src/gatt-client.c:service_create() Exported GATT service: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0070
bluetoothd[8809]: src/gatt-client.c:characteristic_create() Exported GATT characteristic: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0070/char0071
bluetoothd[8809]: src/gatt-client.c:descriptor_create() Exported GATT characteristic descriptor: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0070/char0071/desc0073
bluetoothd[8809]: src/gatt-client.c:characteristic_create() Exported GATT characteristic: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0070/char0074
bluetoothd[8809]: src/gatt-client.c:characteristic_create() Exported GATT characteristic: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0070/char0076
bluetoothd[8809]: src/gatt-client.c:characteristic_create() Exported GATT characteristic: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0070/char0078
bluetoothd[8809]: src/gatt-client.c:characteristic_create() Exported GATT characteristic: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0070/char007a
bluetoothd[8809]: src/gatt-client.c:characteristic_create() Exported GATT characteristic: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0070/char007c
bluetoothd[8809]: src/gatt-client.c:characteristic_create() Exported GATT characteristic: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0070/char007e
bluetoothd[8809]: src/gatt-client.c:characteristic_create() Exported GATT characteristic: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0070/char0080
bluetoothd[8809]: src/gatt-client.c:service_create() Exported GATT service: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0084
bluetoothd[8809]: src/gatt-client.c:characteristic_create() Exported GATT characteristic: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0084/char0085
bluetoothd[8809]: src/gatt-client.c:descriptor_create() Exported GATT characteristic descriptor: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0084/char0085/desc0087
bluetoothd[8809]: src/gatt-client.c:characteristic_create() Exported GATT characteristic: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0084/char0088
bluetoothd[8809]: src/gatt-client.c:service_create() Exported GATT service: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service008c
bluetoothd[8809]: src/gatt-client.c:characteristic_create() Exported GATT characteristic: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service008c/char008d
bluetoothd[8809]: src/gatt-client.c:characteristic_create() Exported GATT characteristic: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service008c/char008f
bluetoothd[8809]: src/gatt-client.c:descriptor_create() Exported GATT characteristic descriptor: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service008c/char008f/desc0091
bluetoothd[8809]: src/gatt-client.c:service_create() Exported GATT service: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0094
bluetoothd[8809]: src/gatt-client.c:characteristic_create() Exported GATT characteristic: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0094/char0095
bluetoothd[8809]: src/gatt-client.c:service_create() Exported GATT service: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0099
bluetoothd[8809]: src/gatt-client.c:characteristic_create() Exported GATT characteristic: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0099/char009a
bluetoothd[8809]: src/gatt-client.c:descriptor_create() Exported GATT characteristic descriptor: /org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0099/char009a/desc009c
bluetoothd[8809]: src/gatt-client.c:btd_gatt_client_ready() Features 0x00
bluetoothd[8809]: src/gatt-client.c:btd_gatt_client_ready() Update Features 0x00
bluetoothd[8809]: src/device.c:device_svc_resolved() /org/bluez/hci0/dev_CD_1B_C3_94_5B_77 err 0
bluetoothd[8809]: src/device.c:gatt_debug() Registered handler for "Service Changed": 1
bluetoothd[8809]: src/device.c:gatt_debug() (chan 0x55f63ef770c0) ATT PDU received: 0x08
bluetoothd[8809]: src/device.c:gatt_debug() Read By Type - start: 0x0001 end: 0xffff
bluetoothd[8809]: src/device.c:gatt_debug() (chan 0x55f63ef770c0) ATT PDU received: 0x08
bluetoothd[8809]: src/device.c:gatt_debug() Read By Type - start: 0x0014 end: 0xffff
bluetoothd[8809]: src/device.c:gatt_debug() (chan 0x55f63ef770c0) ATT PDU received: 0x08
bluetoothd[8809]: src/device.c:gatt_debug() Read By Type - start: 0x0001 end: 0xffff
bluetoothd[8809]: src/gatt-database.c:gap_device_name_read_cb() GAP Device Name read request
----------
list-attributes
[Amazfit GTR 2]# list-attributes
Primary Service (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0001
00001801-0000-1000-8000-00805f9b34fb
Generic Attribute Profile
Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0001/char0002
00002a05-0000-1000-8000-00805f9b34fb
Service Changed
Descriptor (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0001/char0002/desc0004
00002902-0000-1000-8000-00805f9b34fb
Client Characteristic Configuration
Primary Service (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0028
0000180a-0000-1000-8000-00805f9b34fb
Device Information
Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0028/char0029
00002a25-0000-1000-8000-00805f9b34fb
Serial Number String
Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0028/char002b
00002a27-0000-1000-8000-00805f9b34fb
Hardware Revision String
Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0028/char002d
00002a28-0000-1000-8000-00805f9b34fb
Software Revision String
Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0028/char002f
00002a23-0000-1000-8000-00805f9b34fb
System ID
Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0028/char0031
00002a50-0000-1000-8000-00805f9b34fb
PnP ID
Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0028/char0033
00000014-0000-3512-2118-0009af100700
Vendor specific
Descriptor (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0028/char0033/desc0035
00002902-0000-1000-8000-00805f9b34fb
Client Characteristic Configuration
Primary Service (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0038
00001530-0000-3512-2118-0009af100700
Vendor specific
Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0038/char0039
00001531-0000-3512-2118-0009af100700
Vendor specific
Descriptor (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0038/char0039/desc003b
00002902-0000-1000-8000-00805f9b34fb
Client Characteristic Configuration
Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0038/char003c
00001532-0000-3512-2118-0009af100700
Vendor specific
Primary Service (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040
0000fee0-0000-1000-8000-00805f9b34fb
Anhui Huami Information Technology Co., Ltd.
Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0041
00002a2b-0000-1000-8000-00805f9b34fb
Current Time
Descriptor (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0041/desc0043
00002902-0000-1000-8000-00805f9b34fb
Client Characteristic Configuration
Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0044
00002a04-0000-1000-8000-00805f9b34fb
Peripheral Preferred Connection Parameters
Descriptor (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0044/desc0046
00002902-0000-1000-8000-00805f9b34fb
Client Characteristic Configuration
Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0047
00000001-0000-3512-2118-0009af100700
Vendor specific
Descriptor (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0047/desc0049
00002902-0000-1000-8000-00805f9b34fb
Client Characteristic Configuration
Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char004a
00000002-0000-3512-2118-0009af100700
Vendor specific
Descriptor (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char004a/desc004c
00002902-0000-1000-8000-00805f9b34fb
Client Characteristic Configuration
Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char004d
00000003-0000-3512-2118-0009af100700
Vendor specific
Descriptor (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char004d/desc004f
00002902-0000-1000-8000-00805f9b34fb
Client Characteristic Configuration
Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0050
00000004-0000-3512-2118-0009af100700
Vendor specific
Descriptor (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0050/desc0052
00002902-0000-1000-8000-00805f9b34fb
Client Characteristic Configuration
Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0053
00000005-0000-3512-2118-0009af100700
Vendor specific
Descriptor (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0053/desc0055
00002902-0000-1000-8000-00805f9b34fb
Client Characteristic Configuration
Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0056
00000006-0000-3512-2118-0009af100700
Vendor specific
Descriptor (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0056/desc0058
00002902-0000-1000-8000-00805f9b34fb
Client Characteristic Configuration
Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0059
00000007-0000-3512-2118-0009af100700
Vendor specific
Descriptor (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0059/desc005b
00002902-0000-1000-8000-00805f9b34fb
Client Characteristic Configuration
Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char005f
00000010-0000-3512-2118-0009af100700
Vendor specific
Descriptor (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char005f/desc0061
00002902-0000-1000-8000-00805f9b34fb
Client Characteristic Configuration
Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0062
0000000e-0000-3512-2118-0009af100700
Vendor specific
Descriptor (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0062/desc0064
00002901-0000-1000-8000-00805f9b34fb
Characteristic User Description
Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0065
00000020-0000-3512-2118-0009af100700
Vendor specific
Descriptor (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0065/desc0067
00002902-0000-1000-8000-00805f9b34fb
Client Characteristic Configuration
Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0068
00000016-0000-3512-2118-0009af100700
Vendor specific
Descriptor (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char0068/desc006a
00002902-0000-1000-8000-00805f9b34fb
Client Characteristic Configuration
Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char006b
00000017-0000-3512-2118-0009af100700
Vendor specific
Descriptor (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0040/char006b/desc006d
00002902-0000-1000-8000-00805f9b34fb
Client Characteristic Configuration
Primary Service (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0070
0000fee1-0000-1000-8000-00805f9b34fb
Anhui Huami Information Technology Co., Ltd.
Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0070/char0071
00000009-0000-3512-2118-0009af100700
Vendor specific
Descriptor (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0070/char0071/desc0073
00002902-0000-1000-8000-00805f9b34fb
Client Characteristic Configuration
Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0070/char0074
0000fedd-0000-1000-8000-00805f9b34fb
Jawbone
Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0070/char0076
0000fede-0000-1000-8000-00805f9b34fb
Coin, Inc.
Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0070/char0078
0000fedf-0000-1000-8000-00805f9b34fb
Design SHIFT
Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0070/char007a
0000fed0-0000-1000-8000-00805f9b34fb
Apple, Inc.
Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0070/char007c
0000fed1-0000-1000-8000-00805f9b34fb
Apple, Inc.
Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0070/char007e
0000fed2-0000-1000-8000-00805f9b34fb
Apple, Inc.
Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0070/char0080
0000fed3-0000-1000-8000-00805f9b34fb
Apple, Inc.
Primary Service (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0084
0000180d-0000-1000-8000-00805f9b34fb
Heart Rate
Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0084/char0085
00002a37-0000-1000-8000-00805f9b34fb
Heart Rate Measurement
Descriptor (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0084/char0085/desc0087
00002902-0000-1000-8000-00805f9b34fb
Client Characteristic Configuration
Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0084/char0088
00002a39-0000-1000-8000-00805f9b34fb
Heart Rate Control Point
Primary Service (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service008c
00001811-0000-1000-8000-00805f9b34fb
Alert Notification Service
Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service008c/char008d
00002a46-0000-1000-8000-00805f9b34fb
New Alert
Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service008c/char008f
00002a44-0000-1000-8000-00805f9b34fb
Alert Notification Control Point
Descriptor (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service008c/char008f/desc0091
00002902-0000-1000-8000-00805f9b34fb
Client Characteristic Configuration
Primary Service (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0094
00001802-0000-1000-8000-00805f9b34fb
Immediate Alert
Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0094/char0095
00002a06-0000-1000-8000-00805f9b34fb
Alert Level
Primary Service (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0099
00003802-0000-1000-8000-00805f9b34fb
Unknown
Characteristic (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0099/char009a
00004a02-0000-1000-8000-00805f9b34fb
Unknown
Descriptor (Handle 0x0000)
/org/bluez/hci0/dev_CD_1B_C3_94_5B_77/service0099/char009a/desc009c
00002902-0000-1000-8000-00805f9b34fb
Client Characteristic Configuration
