I have a custom GATT Server working as a plugin using BlueZ 4.101 on Linux. I am now trying to set custom Scan Response advertising data. I am using LightBlue on iOS to debug my GATT Server and advertising parameters. I tried the following code, and LightBlue can see the Advertising Payload and Device Name, but not the Scan Response data. How do I set custom Scan Response data with BlueZ?
# BLE Name
echo "<GATT SERVER> Setting BLE Advertising Name..."
btmgmt -i $BLUETOOTH_DEVICE name "My-Test-Device"
echo "<GATT SERVER> Starting BLE Advertising..."
hciconfig $BLUETOOTH_DEVICE leadv
# Adv Packet
echo "<GATT SERVER> Setting BLE Advertising Packets..."
hcitool -i hci0 cmd 0x08 0x0008 15 02 01 06 11 06 fa d8 43 31 14 09 0c ba e1 14 82 25 11 48 96 16
# | | | | | | -----------------------------------------------
# | | | | | | |
# | | | | | | +---- device state service UUID
# | | | | | |
# | | | | | +- Incomplete List of 128-bit Service Class UUIDs
# | | | | |
# | | | | +- Num bytes in -----------------------------------+
# | | | |
# | | | +- LE General Discoverable Mode, BR/EDR
# | | |
# | | +- Flags AD type
# | |
# | +nBytes+
# |
# +- Num bytes in -----------------------------------------------+
# Scan Response
echo "<GATT SERVER> Setting BLE Scan Response..."
hcitool -i hci0 cmd 0x08 0x0009 02 01 06 1A FF 02 5E 03 02 01 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Your command to set discovery response does not make any sense. Here is an exemple :
hcitool -i hci0 cmd 0x08 0x0009 14 13 09 74 68 65 20 70 69
hcitool -i hci0 cmd 0x08 0x0009 : set discovery response
14 : total payload length
13 : info payload length
09 : info type == name
74 68 65 20 70 69 : info payload => the name in ascii. here "the pi"
Please note that this won't work if you device is not connectable.