We=E2=80=99ve been developing products using BlueNRG chips, that act as =
BLE peripherals and are connected via Android/iOS devices acting as =
centrals to control/configure them. It is desirable to be able to =
discover nearby devices and then connect to them. Because of heinous =
caching strategies in both Android and iOS just using a previously =
connected devices name (derived from the name characteristic). The most =
reliable thing to do at the iOS/Droid level is capture the name from the =
advertising data and associate that with the device. This is the only =
reliable way to have a device determine its name programmatically and =
advertise that reliably.
I=E2=80=99m trying to do a product with a Pi like SBC that runs BlueZ =
with a BLE dongle. I set the device=E2=80=99s alias with:
adapterProperties.Set('org.bluez.Adapter1', 'Alias', bleName())
Where bleName() returns the string I want to use for the device. If I =
connect a time or two and reboot a time or two, this will eventually =
show up as the name property in Android/iOS. But if I try to get it from =
the advertising data, there doesn=E2=80=99t seem to be a name in there. =
Is this name not set as part of either the advertisement or scan =
response packet? I know that when doing a custom service UUID, there is =
not enough room in the advertisement packet to have both service UUID =
and name, so it has to go in the scan response packet. Can any bluez =
developers confirm what I should be expecting to happen with setting the =
Alias property?
Is there a way to achieve what I want to do? I have an Advertisement =
interface that I worked up from the examples that I use to do the =
solicitID in. Do I need to shove the name in there somehow additionally?
I don=E2=80=99t really know how to parse btmon output, but here=E2=80=99s =
what it looks like when I start up my app:
----
sudo btmon
[sudo] password for nelson:
Bluetooth monitor ver 5.47
=3D Note: Linux version 4.12.8-nelson (armv7l) =
=
0.183783
=3D Note: Bluetooth subsystem version 2.22 =
=
0.183801
=3D New Index: 5C:F3:70:68:C1:F9 (Primary,USB,hci0) =
=
[hci0] 0.183806
@ MGMT Open: bluetoothd (privileged) version 1.14 =
=
{0x0002} 0.183812
@ MGMT Open: bluetoothd (privileged) version 1.14 =
=
{0x0001} 0.183815
@ MGMT Open: btmon (privileged) version 1.14 =
=
{0x0003} 0.183941
@ MGMT Command: Set Powered (0x0005) plen 1 =
=
{0x0001} [hci0] 1049.660570
Powered: Enabled (0x01)
=3D Open Index: 5C:F3:70:68:C1:F9 =
=
[hci0] 1049.661241
< HCI Command: Reset (0x03|0x0003) plen 0 =
=
#1 [hci0] 1049.663093
> HCI Event: Command Complete (0x0e) plen 4 =
=
#2 [hci0] 1049.666831
Reset (0x03|0x0003) ncmd 1
Status: Success (0x00)
< HCI Command: Read Local Supported Features (0x04|0x0003) plen 0 =
=
#3 [hci0] 1049.668313
> HCI Event: Command Complete (0x0e) plen 12 =
=
#4 [hci0] 1049.669821
Read Local Supported Features (0x04|0x0003) ncmd 1
Status: Success (0x00)
Features: 0xbf 0xfe 0xcf 0xfe 0xdb 0xff 0x7b 0x87
3 slot packets
5 slot packets
Encryption
Slot offset
Timing accuracy
Role switch
Sniff mode
Power control requests
Channel quality driven data rate (CQDDR)
SCO link
HV2 packets
HV3 packets
u-law log synchronous data
A-law log synchronous data
CVSD synchronous data
Paging parameter negotiation
Power control
Transparent synchronous data
Flow control lag (most significant bit)
Broadcast Encryption
Enhanced Data Rate ACL 2 Mbps mode
Enhanced Data Rate ACL 3 Mbps mode
Enhanced inquiry scan
Interlaced inquiry scan
Interlaced page scan
RSSI with inquiry results
Extended SCO link (EV3 packets)
EV4 packets
EV5 packets
AFH capable slave
AFH classification slave
LE Supported (Controller)
3-slot Enhanced Data Rate ACL packets
5-slot Enhanced Data Rate ACL packets
Sniff subrating
Pause encryption
AFH capable master
AFH classification master
Enhanced Data Rate eSCO 2 Mbps mode
Enhanced Data Rate eSCO 3 Mbps mode
3-slot Enhanced Data Rate eSCO packets
Extended Inquiry Response
Simultaneous LE and BR/EDR (Controller)
Secure Simple Pairing
Encapsulated PDU
Erroneous Data Reporting
Non-flushable Packet Boundary Flag
Link Supervision Timeout Changed Event
Inquiry TX Power Level
Enhanced Power Control
Extended features
< HCI Command: Read Local Version Information (0x04|0x0001) plen 0 =
=
#5 [hci0] 1049.670154
> HCI Event: Command Complete (0x0e) plen 12 =
=
#6 [hci0] 1049.671828
Read Local Version Information (0x04|0x0001) ncmd 1
Status: Success (0x00)
HCI version: Bluetooth 4.0 (0x06) - Revision 4096 (0x1000)
LMP version: Bluetooth 4.0 (0x06) - Subversion 8718 (0x220e)
Manufacturer: Broadcom Corporation (15)
Firmware: 001.002.014 (BCM20702A1)
Build: 0000
< HCI Command: Read BD ADDR (0x04|0x0009) plen 0 =
=
#7 [hci0] 1049.672376
> HCI Event: Command Complete (0x0e) plen 10 =
=
#8 [hci0] 1049.673826
Read BD ADDR (0x04|0x0009) ncmd 1
Status: Success (0x00)
Address: 5C:F3:70:68:C1:F9 (CC&C Technologies, Inc)
< HCI Command: Read Buffer Size (0x04|0x0005) plen 0 =
=
#9 [hci0] 1049.674459
> HCI Event: Command Complete (0x0e) plen 11 =
=
#10 [hci0] 1049.675829
Read Buffer Size (0x04|0x0005) ncmd 1
Status: Success (0x00)
ACL MTU: 1021 ACL max packet: 8
SCO MTU: 64 SCO max packet: 1
< HCI Command: Read Class of Device (0x03|0x0023) plen 0 =
=
#11 [hci0] 1049.676386
> HCI Event: Command Complete (0x0e) plen 7 =
=
#12 [hci0] 1049.677827
Read Class of Device (0x03|0x0023) ncmd 1
Status: Success (0x00)
Class: 0x000000
Major class: Miscellaneous
Minor class: 0x00
< HCI Command: Read Local Name (0x03|0x0014) plen 0 =
=
#13 [hci0] 1049.677974
> HCI Event: Command Complete (0x0e) plen 252 =
=
#14 [hci0] 1049.694817
Read Local Name (0x03|0x0014) ncmd 1
Status: Success (0x00)
Name: BCM20702A
< HCI Command: Read Voice Setting (0x03|0x0025) plen 0 =
=
#15 [hci0] 1049.694983
> HCI Event: Command Complete (0x0e) plen 6 =
=
#16 [hci0] 1049.696821
Read Voice Setting (0x03|0x0025) ncmd 1
Status: Success (0x00)
Setting: 0x0060
Input Coding: Linear
Input Data Format: 2's complement
Input Sample Size: 16-bit
# of bits padding at MSB: 0
Air Coding Format: CVSD
< HCI Command: Read Number of Supported IAC (0x03|0x0038) plen 0 =
=
#17 [hci0] 1049.696988
> HCI Event: Command Complete (0x0e) plen 5 =
=
#18 [hci0] 1049.698824
Read Number of Supported IAC (0x03|0x0038) ncmd 1
Status: Success (0x00)
Number of IAC: 4
< HCI Command: Read Current IAC LAP (0x03|0x0039) plen 0 =
=
#19 [hci0] 1049.699098
> HCI Event: Command Complete (0x0e) plen 8 =
=
#20 [hci0] 1049.700826
Read Current IAC LAP (0x03|0x0039) ncmd 1
Status: Success (0x00)
Number of IAC: 1
Access code: 0x9e8b33 (General Inquiry)
< HCI Command: Set Event Filter (0x03|0x0005) plen 1 =
=
#21 [hci0] 1049.701013
Type: Clear All Filters (0x00)
> HCI Event: Command Complete (0x0e) plen 4 =
=
#22 [hci0] 1049.702826
Set Event Filter (0x03|0x0005) ncmd 1
Status: Success (0x00)
< HCI Command: Write Connection Accept Timeout (0x03|0x0016) plen 2 =
=
#23 [hci0] 1049.703056
Timeout: 20000.000 msec (0x7d00)
> HCI Event: Command Complete (0x0e) plen 4 =
=
#24 [hci0] 1049.704818
Write Connection Accept Timeout (0x03|0x0016) ncmd 1
Status: Success (0x00)
< HCI Command: LE Read Buffer Size (0x08|0x0002) plen 0 =
=
#25 [hci0] 1049.704974
> HCI Event: Command Complete (0x0e) plen 7 =
=
#26 [hci0] 1049.706825
LE Read Buffer Size (0x08|0x0002) ncmd 1
Status: Success (0x00)
Data packet length: 27
Num data packets: 15
< HCI Command: LE Read Local Supported Features (0x08|0x0003) plen 0 =
=
#27 [hci0] 1049.707125
> HCI Event: Command Complete (0x0e) plen 12 =
=
#28 [hci0] 1049.708824
LE Read Local Supported Features (0x08|0x0003) ncmd 1
Status: Success (0x00)
Features: 0x01 0x00 0x00 0x00 0x00 0x00 0x00 0x00
LE Encryption
< HCI Command: LE Read Supported States (0x08|0x001c) plen 0 =
=
#29 [hci0] 1049.709614
> HCI Event: Command Complete (0x0e) plen 12 =
=
#30 [hci0] 1049.711827
LE Read Supported States (0x08|0x001c) ncmd 1
Status: Success (0x00)
States: 0x000000001fffffff
Non-connectable Advertising State
Scannable Advertising State
Connectable Advertising State
High Duty Cycle Directed Advertising State
Passive Scanning State
Active Scanning State
Initiating State
and Connection State (Master Role)
Connection State (Slave Role)
Non-connectable Advertising State
and Passive Scanning State
Scannable Advertising State
and Passive Scanning State
Connectable Advertising State
and Passive Scanning State
High Duty Cycle Directed Advertising State
and Passive Scanning State
Non-connectable Advertising State
and Active Scanning State
Scannable Advertising State
and Active Scanning State
Connectable Advertising State
and Active Scanning State
High Duty Cycle Directed Advertising State
and Active Scanning State
Non-connectable Advertising State
and Initiating State
Scannable Advertising State
and Initiating State
Non-connectable Advertising State
and Connection State (Master Role)
Scannable Advertising State
and Connection State (Master Role)
Non-connectable Advertising State
and Connection State (Slave Role)
Scannable Advertising State
and Connection State (Slave Role)
Passive Scanning State
and Initiating State
Active Scanning State
and Initiating State
Passive Scanning State
and Connection State (Master Role)
Active Scanning State
and Connection State (Master Role)
Passive Scanning State
and Connection State (Slave Role)
Active Scanning State
and Connection State (Slave Role)
Initiating State
and Connection State (Master Role)
and Master Role & Master Role
< HCI Command: Read Local Supported Commands (0x04|0x0002) plen 0 =
=
#31 [hci0] 1049.712439
> HCI Event: Command Complete (0x0e) plen 68 =
=
#32 [hci0] 1049.717817
Read Local Supported Commands (0x04|0x0002) ncmd 1
Status: Success (0x00)
Commands: 161 entries
Inquiry (Octet 0 - Bit 0)
Inquiry Cancel (Octet 0 - Bit 1)
Periodic Inquiry Mode (Octet 0 - Bit 2)
Exit Periodic Inquiry Mode (Octet 0 - Bit 3)
Create Connection (Octet 0 - Bit 4)
Disconnect (Octet 0 - Bit 5)
Add SCO Connection (Octet 0 - Bit 6)
Create Connection Cancel (Octet 0 - Bit 7)
Accept Connection Request (Octet 1 - Bit 0)
Reject Connection Request (Octet 1 - Bit 1)
Link Key Request Reply (Octet 1 - Bit 2)
Link Key Request Negative Reply (Octet 1 - Bit 3)
PIN Code Request Reply (Octet 1 - Bit 4)
PIN Code Request Negative Reply (Octet 1 - Bit 5)
Change Connection Packet Type (Octet 1 - Bit 6)
Authentication Requested (Octet 1 - Bit 7)
Set Connection Encryption (Octet 2 - Bit 0)
Change Connection Link Key (Octet 2 - Bit 1)
Master Link Key (Octet 2 - Bit 2)
Remote Name Request (Octet 2 - Bit 3)
Remote Name Request Cancel (Octet 2 - Bit 4)
Read Remote Supported Features (Octet 2 - Bit 5)
Read Remote Extended Features (Octet 2 - Bit 6)
Read Remote Version Information (Octet 2 - Bit 7)
Read Clock Offset (Octet 3 - Bit 0)
Read LMP Handle (Octet 3 - Bit 1)
Sniff Mode (Octet 4 - Bit 2)
Exit Sniff Mode (Octet 4 - Bit 3)
QoS Setup (Octet 4 - Bit 6)
Role Discovery (Octet 4 - Bit 7)
Switch Role (Octet 5 - Bit 0)
Read Link Policy Settings (Octet 5 - Bit 1)
Write Link Policy Settings (Octet 5 - Bit 2)
Read Default Link Policy Settings (Octet 5 - Bit 3)
Write Default Link Policy Settings (Octet 5 - Bit 4)
Flow Specification (Octet 5 - Bit 5)
Set Event Mask (Octet 5 - Bit 6)
Reset (Octet 5 - Bit 7)
Set Event Filter (Octet 6 - Bit 0)
Flush (Octet 6 - Bit 1)
Read PIN Type (Octet 6 - Bit 2)
Write PIN Type (Octet 6 - Bit 3)
Read Stored Link Key (Octet 6 - Bit 5)
Write Stored Link Key (Octet 6 - Bit 6)
Delete Stored Link Key (Octet 6 - Bit 7)
Write Local Name (Octet 7 - Bit 0)
Read Local Name (Octet 7 - Bit 1)
Read Connection Accept Timeout (Octet 7 - Bit 2)
Write Connection Accept Timeout (Octet 7 - Bit 3)
Read Page Timeout (Octet 7 - Bit 4)
Write Page Timeout (Octet 7 - Bit 5)
Read Scan Enable (Octet 7 - Bit 6)
Write Scan Enable (Octet 7 - Bit 7)
Read Page Scan Activity (Octet 8 - Bit 0)
Write Page Scan Activity (Octet 8 - Bit 1)
Read Inquiry Scan Activity (Octet 8 - Bit 2)
Write Inquiry Scan Activity (Octet 8 - Bit 3)
Read Authentication Enable (Octet 8 - Bit 4)
Write Authentication Enable (Octet 8 - Bit 5)
Read Encryption Mode (Octet 8 - Bit 6)
Write Encryption Mode (Octet 8 - Bit 7)
Read Class of Device (Octet 9 - Bit 0)
Write Class of Device (Octet 9 - Bit 1)
Read Voice Setting (Octet 9 - Bit 2)
Write Voice Setting (Octet 9 - Bit 3)
Read Automatic Flush Timeout (Octet 9 - Bit 4)
Write Automatic Flush Timeout (Octet 9 - Bit 5)
Read Num Broadcast Retransmissions (Octet 9 - Bit 6)
Write Num Broadcast Retransmissions (Octet 9 - Bit 7)
Read Transmit Power Level (Octet 10 - Bit 2)
Read Sync Flow Control Enable (Octet 10 - Bit 3)
Set Controller To Host Flow Control (Octet 10 - Bit 5)
Host Buffer Size (Octet 10 - Bit 6)
Host Number of Completed Packets (Octet 10 - Bit 7)
Read Link Supervision Timeout (Octet 11 - Bit 0)
Write Link Supervision Timeout (Octet 11 - Bit 1)
Read Number of Supported IAC (Octet 11 - Bit 2)
Read Current IAC LAP (Octet 11 - Bit 3)
Write Current IAC LAP (Octet 11 - Bit 4)
Set AFH Host Channel Classification (Octet 12 - Bit 1)
Read Inquiry Scan Type (Octet 12 - Bit 4)
Write Inquiry Scan Type (Octet 12 - Bit 5)
Read Inquiry Mode (Octet 12 - Bit 6)
Write Inquiry Mode (Octet 12 - Bit 7)
Read Page Scan Type (Octet 13 - Bit 0)
Write Page Scan Type (Octet 13 - Bit 1)
Read AFH Channel Assessment Mode (Octet 13 - Bit 2)
Write AFH Channel Assessment Mode (Octet 13 - Bit 3)
Read Local Version Information (Octet 14 - Bit 3)
Read Local Supported Features (Octet 14 - Bit 5)
Read Local Extended Features (Octet 14 - Bit 6)
Read Buffer Size (Octet 14 - Bit 7)
Read BD ADDR (Octet 15 - Bit 1)
Read Failed Contact Counter (Octet 15 - Bit 2)
Reset Failed Contact Counter (Octet 15 - Bit 3)
Read Link Quality (Octet 15 - Bit 4)
Read RSSI (Octet 15 - Bit 5)
Read AFH Channel Map (Octet 15 - Bit 6)
Read Clock (Octet 15 - Bit 7)
Read Loopback Mode (Octet 16 - Bit 0)
Write Loopback Mode (Octet 16 - Bit 1)
Enable Device Under Test Mode (Octet 16 - Bit 2)
Setup Synchronous Connection (Octet 16 - Bit 3)
Accept Synchronous Connection Request (Octet 16 - Bit 4)
Reject Synchronous Connection Request (Octet 16 - Bit 5)
Read Extended Inquiry Response (Octet 17 - Bit 0)
Write Extended Inquiry Response (Octet 17 - Bit 1)
Refresh Encryption Key (Octet 17 - Bit 2)
Sniff Subrating (Octet 17 - Bit 4)
Read Simple Pairing Mode (Octet 17 - Bit 5)
Write Simple Pairing Mode (Octet 17 - Bit 6)
Read Local OOB Data (Octet 17 - Bit 7)
Read Inquiry Response TX Power Level (Octet 18 - Bit 0)
Write Inquiry Transmit Power Level (Octet 18 - Bit 1)
Read Default Erroneous Data Reporting (Octet 18 - Bit 2)
Write Default Erroneous Data Reporting (Octet 18 - Bit 3)
IO Capability Request Reply (Octet 18 - Bit 7)
User Confirmation Request Reply (Octet 19 - Bit 0)
User Confirmation Request Neg Reply (Octet 19 - Bit 1)
User Passkey Request Reply (Octet 19 - Bit 2)
User Passkey Request Negative Reply (Octet 19 - Bit 3)
Remote OOB Data Request Reply (Octet 19 - Bit 4)
Write Simple Pairing Debug Mode (Octet 19 - Bit 5)
Enhanced Flush (Octet 19 - Bit 6)
Remote OOB Data Request Neg Reply (Octet 19 - Bit 7)
Send Keypress Notification (Octet 20 - Bit 2)
IO Capability Request Negative Reply (Octet 20 - Bit 3)
Read Encryption Key Size (Octet 20 - Bit 4)
Read Enhanced Transmit Power Level (Octet 24 - Bit 0)
Read LE Host Supported (Octet 24 - Bit 5)
Write LE Host Supported (Octet 24 - Bit 6)
LE Set Event Mask (Octet 25 - Bit 0)
LE Read Buffer Size (Octet 25 - Bit 1)
LE Read Local Supported Features (Octet 25 - Bit 2)
LE Set Random Address (Octet 25 - Bit 4)
LE Set Advertising Parameters (Octet 25 - Bit 5)
LE Read Advertising Channel TX Power (Octet 25 - Bit 6)
LE Set Advertising Data (Octet 25 - Bit 7)
LE Set Scan Response Data (Octet 26 - Bit 0)
LE Set Advertise Enable (Octet 26 - Bit 1)
LE Set Scan Parameters (Octet 26 - Bit 2)
LE Set Scan Enable (Octet 26 - Bit 3)
LE Create Connection (Octet 26 - Bit 4)
LE Create Connection Cancel (Octet 26 - Bit 5)
LE Read White List Size (Octet 26 - Bit 6)
LE Clear White List (Octet 26 - Bit 7)
LE Add Device To White List (Octet 27 - Bit 0)
LE Remove Device =46rom White List (Octet 27 - Bit 1)
LE Connection Update (Octet 27 - Bit 2)
LE Set Host Channel Classification (Octet 27 - Bit 3)
LE Read Channel Map (Octet 27 - Bit 4)
LE Read Remote Used Features (Octet 27 - Bit 5)
LE Encrypt (Octet 27 - Bit 6)
LE Rand (Octet 27 - Bit 7)
LE Start Encryption (Octet 28 - Bit 0)
LE Long Term Key Request Reply (Octet 28 - Bit 1)
LE Long Term Key Request Neg Reply (Octet 28 - Bit 2)
LE Read Supported States (Octet 28 - Bit 3)
LE Receiver Test (Octet 28 - Bit 4)
LE Transmitter Test (Octet 28 - Bit 5)
LE Test End (Octet 28 - Bit 6)
< HCI Command: Write Simple Pairing Mode (0x03|0x0056) plen 1 =
=
#33 [hci0] 1049.718291
Mode: Enabled (0x01)
> HCI Event: Command Complete (0x0e) plen 4 =
=
#34 [hci0] 1049.783828
Write Simple Pairing Mode (0x03|0x0056) ncmd 1
Status: Success (0x00)
< HCI Command: Write Inquiry Mode (0x03|0x0045) plen 1 =
=
#35 [hci0] 1049.784435
Mode: Inquiry Result with RSSI or Extended Inquiry Result (0x02)
> HCI Event: Command Complete (0x0e) plen 4 =
=
#36 [hci0] 1049.785815
Write Inquiry Mode (0x03|0x0045) ncmd 1
Status: Success (0x00)
< HCI Command: Read Inquiry Response TX Power Level (0x03|0x0058) plen 0 =
=
#37 [hci0] 1049.786563
> HCI Event: Command Complete (0x0e) plen 5 =
=
#38 [hci0] 1049.788806
Read Inquiry Response TX Power Level (0x03|0x0058) ncmd 1
Status: Success (0x00)
TX power: 0 dbm (0x00)
< HCI Command: Read Local Extended Features (0x04|0x0004) plen 1 =
=
#39 [hci0] 1049.788905
Page: 1
> HCI Event: Command Complete (0x0e) plen 14 =
=
#40 [hci0] 1049.790815
Read Local Extended Features (0x04|0x0004) ncmd 1
Status: Success (0x00)
Page: 1/1
Features: 0x01 0x00 0x00 0x00 0x00 0x00 0x00 0x00
Secure Simple Pairing (Host Support)
< HCI Command: Set Event Mask (0x03|0x0001) plen 8 =
=
#41 [hci0] 1049.791732
Mask: 0x3dbff807fffbffff
Inquiry Complete
Inquiry Result
Connection Complete
Connection Request
Disconnection Complete
Authentication Complete
Remote Name Request Complete
Encryption Change
Change Connection Link Key Complete
Master Link Key Complete
Read Remote Supported Features Complete
Read Remote Version Information Complete
QoS Setup Complete
Command Complete
Command Status
Hardware Error
Flush Occurred
Role Change
Mode Change
Return Link Keys
PIN Code Request
Link Key Request
Link Key Notification
Loopback Command
Data Buffer Overflow
Max Slots Change
Read Clock Offset Complete
Connection Packet Type Changed
QoS Violation
Page Scan Mode Change
Page Scan Repetition Mode Change
Flow Specification Complete
Inquiry Result with RSSI
Read Remote Extended Features Complete
Synchronous Connection Complete
Synchronous Connection Changed
Sniff Subrating
Extended Inquiry Result
Encryption Key Refresh Complete
IO Capability Request
IO Capability Request Reply
User Confirmation Request
User Passkey Request
Remote OOB Data Request
Simple Pairing Complete
Link Supervision Timeout Changed
Enhanced Flush Complete
User Passkey Notification
Keypress Notification
Remote Host Supported Features Notification
LE Meta
> HCI Event: Command Complete (0x0e) plen 4 =
=
#42 [hci0] 1049.793832
Set Event Mask (0x03|0x0001) ncmd 1
Status: Success (0x00)
< HCI Command: Read Stored Link Key (0x03|0x000d) plen 7 =
=
#43 [hci0] 1049.794006
Address: 00:00:00:00:00:00 (OUI 00-00-00)
Read all: 0x01
> HCI Event: Command Complete (0x0e) plen 8 =
=
#44 [hci0] 1049.795808
Read Stored Link Key (0x03|0x000d) ncmd 1
Status: Success (0x00)
Max num keys: 1
Num keys: 0
< HCI Command: Write Default Link Policy Settings (0x02|0x000f) plen 2 =
=
#45 [hci0] 1049.796050
Link policy: 0x0005
Enable Role Switch
Enable Sniff Mode
> HCI Event: Command Complete (0x0e) plen 4 =
=
#46 [hci0] 1049.797817
Write Default Link Policy Settings (0x02|0x000f) ncmd 1
Status: Success (0x00)
< HCI Command: Read Page Scan Activity (0x03|0x001b) plen 0 =
=
#47 [hci0] 1049.797939
> HCI Event: Command Complete (0x0e) plen 8 =
=
#48 [hci0] 1049.799821
Read Page Scan Activity (0x03|0x001b) ncmd 1
Status: Success (0x00)
Interval: 1280.000 msec (0x0800)
Window: 11.250 msec (0x0012)
< HCI Command: Read Page Scan Type (0x03|0x0046) plen 0 =
=
#49 [hci0] 1049.799939
> HCI Event: Command Complete (0x0e) plen 5 =
=
#50 [hci0] 1049.801825
Read Page Scan Type (0x03|0x0046) ncmd 1
Status: Success (0x00)
Type: Standard Scan (0x00)
< HCI Command: LE Set Event Mask (0x08|0x0001) plen 8 =
=
#51 [hci0] 1049.801989
Mask: 0x000000000000001f
LE Connection Complete
LE Advertising Report
LE Connection Update Complete
LE Read Remote Used Features Complete
LE Long Term Key Request
> HCI Event: Command Complete (0x0e) plen 4 =
=
#52 [hci0] 1049.803822
LE Set Event Mask (0x08|0x0001) ncmd 1
Status: Success (0x00)
< HCI Command: LE Read Advertising Channel TX Power (0x08|0x0007) plen 0 =
=
#53 [hci0] 1049.803952
> HCI Event: Command Complete (0x0e) plen 5 =
=
#54 [hci0] 1049.805815
LE Read Advertising Channel TX Power (0x08|0x0007) ncmd 1
Status: Success (0x00)
TX power: 4 dbm (0x04)
< HCI Command: LE Read White List Size (0x08|0x000f) plen 0 =
=
#55 [hci0] 1049.806071
> HCI Event: Command Complete (0x0e) plen 5 =
=
#56 [hci0] 1049.807817
LE Read White List Size (0x08|0x000f) ncmd 1
Status: Success (0x00)
Size: 32
< HCI Command: LE Clear White List (0x08|0x0010) plen 0 =
=
#57 [hci0] 1049.808027
> HCI Event: Command Complete (0x0e) plen 4 =
=
#58 [hci0] 1049.809820
LE Clear White List (0x08|0x0010) ncmd 1
Status: Success (0x00)
< HCI Command: Write LE Host Supported (0x03|0x006d) plen 2 =
=
#59 [hci0] 1049.809953
Supported: 0x01
Simultaneous: 0x00
> HCI Event: Command Complete (0x0e) plen 4 =
=
#60 [hci0] 1049.811816
Write LE Host Supported (0x03|0x006d) ncmd 1
Status: Success (0x00)
< HCI Command: Delete Stored Link Key (0x03|0x0012) plen 7 =
=
#61 [hci0] 1049.812072
Address: 00:00:00:00:00:00 (OUI 00-00-00)
Delete all: 0x01
> HCI Event: Command Complete (0x0e) plen 6 =
=
#62 [hci0] 1049.813823
Delete Stored Link Key (0x03|0x0012) ncmd 1
Status: Success (0x00)
Num keys: 0
=3D Index Info: 5C:F3:70:68:C1:F9 (Broadcom Corporation) =
=
[hci0] 1049.814026
< HCI Command: LE Set Advertising Data (0x08|0x0008) plen 32 =
=
#63 [hci0] 1049.814229
Length: 3
TX power: 4 dBm
> HCI Event: Command Complete (0x0e) plen 4 =
=
#64 [hci0] 1049.815821
LE Set Advertising Data (0x08|0x0008) ncmd 1
Status: Success (0x00)
< HCI Command: LE Set Scan Response Data (0x08|0x0009) plen 32 =
=
#65 [hci0] 1049.815970
Length: 13
Name (short): PILOT-FFED
> HCI Event: Command Complete (0x0e) plen 4 =
=
#66 [hci0] 1049.817815
LE Set Scan Response Data (0x08|0x0009) ncmd 1
Status: Success (0x00)
< HCI Command: Write Local Name (0x03|0x0013) plen 248 =
=
#67 [hci0] 1049.818082
Name: PILOT-FFED98
> HCI Event: Command Complete (0x0e) plen 4 =
=
#68 [hci0] 1049.820841
Write Local Name (0x03|0x0013) ncmd 1
Status: Success (0x00)
< HCI Command: Write Extended Inquiry Response (0x03|0x0052) plen 241 =
=
#69 [hci0] 1049.821084
FEC: Not required (0x00)
Name (complete): PILOT-FFED98
TX power: 0 dBm
Device ID: USB Implementer's Forum assigned (0x0002)
Vendor: Linux Foundation (0x1d6b)
Product: 0x0246
Version: 5.2.15 (0x052f)
16-bit Service UUIDs (complete): 2 entries
Generic Access Profile (0x1800)
Generic Attribute Profile (0x1801)
> HCI Event: Command Complete (0x0e) plen 4 =
=
#70 [hci0] 1049.823816
Write Extended Inquiry Response (0x03|0x0052) ncmd 1
Status: Success (0x00)
@ MGMT Event: Command Complete (0x0001) plen 7 =
=
{0x0001} [hci0] 1049.824091
Set Powered (0x0005) plen 4
Status: Success (0x00)
Current settings: 0x00000ad1
Powered
Bondable
Secure Simple Pairing
BR/EDR
Low Energy
Secure Connections
@ MGMT Event: New Settings (0x0006) plen 4 =
=
{0x0003} [hci0] 1049.824114
Current settings: 0x00000ad1
Powered
Bondable
Secure Simple Pairing
BR/EDR
Low Energy
Secure Connections
@ MGMT Event: New Settings (0x0006) plen 4 =
=
{0x0002} [hci0] 1049.824114
Current settings: 0x00000ad1
Powered
Bondable
Secure Simple Pairing
BR/EDR
Low Energy
Secure Connections
@ MGMT Command: Add Advertising (0x003e) plen 29 =
=
{0x0002} [hci0] 1050.209116
Instance: 1
Flags: 0x00000003
Switch into Connectable mode
Advertise as Discoverable
Duration: 0
Timeout: 0
Advertising data length: 18
128-bit Service UUIDs (complete): 1 entry
Vendor specific (00000000-08af-41c0-8048-4215e1560a37)
Scan response length: 0
@ MGMT Event: Advertising Added (0x0023) plen 1 =
=
{0x0003} [hci0] 1050.209149
Instance: 1
@ MGMT Event: Advertising Added (0x0023) plen 1 =
=
{0x0001} [hci0] 1050.209149
Instance: 1
< HCI Command: LE Set Advertising Data (0x08|0x0008) plen 32 =
=
#71 [hci0] 1050.214845
Length: 21
Flags: 0x02
LE General Discoverable Mode
128-bit Service UUIDs (complete): 1 entry
Vendor specific (00000000-08af-41c0-8048-4215e1560a37)
> HCI Event: Command Complete (0x0e) plen 4 =
=
#72 [hci0] 1050.216824
LE Set Advertising Data (0x08|0x0008) ncmd 1
Status: Success (0x00)
< HCI Command: LE Set Scan Response Data (0x08|0x0009) plen 32 =
=
#73 [hci0] 1050.217797
Length: 0
> HCI Event: Command Complete (0x0e) plen 4 =
=
#74 [hci0] 1050.219823
LE Set Scan Response Data (0x08|0x0009) ncmd 1
Status: Success (0x00)
< HCI Command: LE Set Advertising Parameters (0x08|0x0006) plen 15 =
=
#75 [hci0] 1050.220255
Min advertising interval: 1280.000 msec (0x0800)
Max advertising interval: 1280.000 msec (0x0800)
Type: Connectable undirected - ADV_IND (0x00)
Own address type: Public (0x00)
Direct address type: Public (0x00)
Direct address: 00:00:00:00:00:00 (OUI 00-00-00)
Channel map: 37, 38, 39 (0x07)
Filter policy: Allow Scan Request from Any, Allow Connect =
Request from Any (0x00)
> HCI Event: Command Complete (0x0e) plen 4 =
=
#76 [hci0] 1050.221822
LE Set Advertising Parameters (0x08|0x0006) ncmd 1
Status: Success (0x00)
< HCI Command: LE Set Advertise Enable (0x08|0x000a) plen 1 =
=
#77 [hci0] 1050.222283
Advertising: Enabled (0x01)
> HCI Event: Command Complete (0x0e) plen 4 =
=
#78 [hci0] 1050.223815
LE Set Advertise Enable (0x08|0x000a) ncmd 1
Status: Success (0x00)
@ MGMT Event: Command Complete (0x0001) plen 4 =
=
{0x0002} [hci0] 1050.223943
Add Advertising (0x003e) plen 1
Status: Success (0x00)
Instance: 1
> On Nov 3, 2017, at 1:52 AM, Luiz Augusto von Dentz =
<[email protected]> wrote:
>=20
> Hi Travis,
>=20
> On Fri, Nov 3, 2017 at 12:35 AM, Travis Griggs =
<[email protected]> wrote:
>> We=E2=80=99ve been developing products using BlueNRG chips, that act =
as BLE peripherals and are connected via Android/iOS devices acting as =
centrals to control/configure them. It is desirable to be able to =
discover nearby devices and then connect to them. Because of heinous =
caching strategies in both Android and iOS just using a previously =
connected devices name (derived from the name characteristic). The most =
reliable thing to do at the iOS/Droid level is capture the name from the =
advertising data and associate that with the device. This is the only =
reliable way to have a device determine its name programmatically and =
advertise that reliably.
>>=20
>> I=E2=80=99m trying to do a product with a Pi like SBC that runs BlueZ =
with a BLE dongle. I set the device=E2=80=99s alias with:
>>=20
>> adapterProperties.Set('org.bluez.Adapter1', 'Alias', bleName())
>>=20
>> Where bleName() returns the string I want to use for the device. If I =
connect a time or two and reboot a time or two, this will eventually =
show up as the name property in Android/iOS. But if I try to get it from =
the advertising data, there doesn=E2=80=99t seem to be a name in there. =
Is this name not set as part of either the advertisement or scan =
response packet? I know that when doing a custom service UUID, there is =
not enough room in the advertisement packet to have both service UUID =
and name, so it has to go in the scan response packet. Can any bluez =
developers confirm what I should be expecting to happen with setting the =
Alias property?
>>=20
>> Is there a way to achieve what I want to do? I have an Advertisement =
interface that I worked up from the examples that I use to do the =
solicitID in. Do I need to shove the name in there somehow additionally?
>>=20
>=20
> You actually need to set the include option in the advertisement,
> otherwise the kernel won't include the name on the scan response:
>=20
> =
https://git.kernel.org/pub/scm/bluetooth/bluez.git/tree/doc/advertising-ap=
i.txt#n147
> =
https://git.kernel.org/pub/scm/bluetooth/bluez.git/tree/doc/advertising-ap=
i.txt#n64
>=20
> You can check how it works with:
> bluetoothctl> set-advertise-name on
>=20
> Alternatively, you can set a local name for the advertisement:
> =
https://git.kernel.org/pub/scm/bluetooth/bluez.git/tree/doc/advertising-ap=
i.txt#n72
I tried this second approach, I believe. I have an Advertisement class =
that is pretty much a direct copy of the one example-advertisement.py in =
bluez/test. I noticed that since I had last =E2=80=9Ccopied=E2=80=9D the =
class, the local_name property/add_local_name had been added. So I added =
that and then attempted to use it, just like the TestAdvertisment =
subclass in the example. When I did that, it just quit showing up at =
all. I=E2=80=99m not sure where to look to get to the bottom of that. I =
am already setting a long service UUID as part of the advertisment.
I=E2=80=99m not enough of a dbus guy to know how to interpret the first =
two links. My basic problem, is that I don=E2=80=99t really know dbus. I =
kinda get it at a high level. But I see what is likely great =
documentation in the first two links and then ask =E2=80=9Cbut what do I =
do with this?=E2=80=9D I would love the idiots guide to dbus/bluez, but =
no one has seemed interested in writing that. For application level =
programmers, who have lots of C experience, file system experience, =
command line experience, etc, trying to set up Linux as a bluetooth =
peripheral, this is likely their first exposure to dbus.
Working from the example-advertise.py file, what would the first =
suggestion look like? Or do the two alternates end up doing the same =
thing? If they=E2=80=99re two different ways of getting at the same =
thing, then the suggestion doesn=E2=80=99t work sadly.
Hi Travis,
On Fri, Nov 3, 2017 at 12:35 AM, Travis Griggs <[email protected]> wro=
te:
> We=E2=80=99ve been developing products using BlueNRG chips, that act as B=
LE peripherals and are connected via Android/iOS devices acting as centrals=
to control/configure them. It is desirable to be able to discover nearby d=
evices and then connect to them. Because of heinous caching strategies in b=
oth Android and iOS just using a previously connected devices name (derived=
from the name characteristic). The most reliable thing to do at the iOS/Dr=
oid level is capture the name from the advertising data and associate that =
with the device. This is the only reliable way to have a device determine i=
ts name programmatically and advertise that reliably.
>
> I=E2=80=99m trying to do a product with a Pi like SBC that runs BlueZ wit=
h a BLE dongle. I set the device=E2=80=99s alias with:
>
> adapterProperties.Set('org.bluez.Adapter1', 'Alias', bleName())
>
> Where bleName() returns the string I want to use for the device. If I con=
nect a time or two and reboot a time or two, this will eventually show up a=
s the name property in Android/iOS. But if I try to get it from the adverti=
sing data, there doesn=E2=80=99t seem to be a name in there. Is this name n=
ot set as part of either the advertisement or scan response packet? I know =
that when doing a custom service UUID, there is not enough room in the adve=
rtisement packet to have both service UUID and name, so it has to go in the=
scan response packet. Can any bluez developers confirm what I should be ex=
pecting to happen with setting the Alias property?
>
> Is there a way to achieve what I want to do? I have an Advertisement inte=
rface that I worked up from the examples that I use to do the solicitID in.=
Do I need to shove the name in there somehow additionally?
>
You actually need to set the include option in the advertisement,
otherwise the kernel won't include the name on the scan response:
https://git.kernel.org/pub/scm/bluetooth/bluez.git/tree/doc/advertising-api=
.txt#n147
https://git.kernel.org/pub/scm/bluetooth/bluez.git/tree/doc/advertising-api=
.txt#n64
You can check how it works with:
bluetoothctl> set-advertise-name on
Alternatively, you can set a local name for the advertisement:
https://git.kernel.org/pub/scm/bluetooth/bluez.git/tree/doc/advertising-api=
.txt#n72