When i coross compile for arm64 platform, it suggest that Could not find python developer package!

[e665107]

Hi: Following is my log, can you help me?

forlinx@ubuntu:~/work/refs/gattlib/build$ cmake .. -- Could NOT find Doxygen (missing: DOXYGEN_EXECUTABLE) Build DBus gattlib for Bluez v5.50 -- Could NOT find Python3 (missing: Python3_INCLUDE_DIRS Python3_LIBRARIES Development Development.Module Development.Embed) (found version "3.8.10") -- Could NOT find Python3 (missing: Python3_INCLUDE_DIRS Development.Module) CMake Error at dbus/CMakeLists.txt:115 (message): Could not find Python developer package

-- Configuring incomplete, errors occurred!

[oliviermartin]

Hi, disabling Python support from your build should fix the build issue:

cmake -DGATTLIB_PYTHON_INTERFACE=OFF ..

[e665107]

OK， thank you ! And another question!

But how can i generate the ble_scan app?

[oliviermartin]

cmake -DGATTLIB_PYTHON_INTERFACE=OFF -DGATTLIB_BUILD_EXAMPLES=YES ..

I will change the build system to disable Python and build examples by default :-)

[e665107]

I have compiled the example apps! Here is a need! That is to receive the wearing watch's broadcast data! I want to use this lib to complete it!
Can you give me a suggestion procedure? For instance, which apis can do that! Thanks a lot!

[oliviermartin]

You need to use advertisement_data example and you should particularly be interested by the function gattlib_get_advertisement_data_from_mac(): https://github.com/labapart/gattlib/blob/master/examples/advertisement_data/advertisement_data.c#L46

[e665107]

Hi， After i used this api, it prints as follow: gattlib_advertisement_dat: Manufacturer Data with multiple children: {uint16 1048: <[byte 0x0a, 0x0a, 0x07, 0x02, 0xca, 0x00, 0x20, 0x00, 0x00, 0x00, 0x1e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00]>, 4821: <[byte 0xd8, 0x94, 0x00, 0x4e]>}

What does it mean, i have find it in the source, and below is "return GATTLIB_NOT_SUPPORTED;" . Gattlib can't support this ble device?

[e665107]

When I used ble app of iphone, the manufacture data is follow:

Why they are different?

[oliviermartin]

@e665107 I have just updated the repository to support multiple manufacturer data ID. I have not tested the code yet. If it does not work, can you send me the full log to help me to fix the issue.

[e665107]

I'm very glad to do that!

ret = gattlib_get_advertisement_data_from_mac(adapter, addr,
                                              &advertisement_data, &advertisement_data_count,
                                              &manufacturer_id, &manufacturer_data, &manufacturer_data_size);

After i have replaced the addr with the wearing watch's addr "D5:12:D8:94:00:4E", run the advertisement_data , it prints as follow: gattlib_advertisement_dat: Manufacturer Data with multiple children: {uint16 1048: <[byte 0x0a, 0x0a, 0x07, 0x02, 0xca, 0x00, 0x20, 0x00, 0x00, 0x00, 0x1e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00]>, 4821: <[byte 0xd8, 0x94, 0x00, 0x4e]>}

The main purpose to replace the addr is that i want to receive the only advertise data of wearing watch, do i modify wrong?

[oliviermartin]

@e665107 I do not think you got the last version of gattlib. The last version is 880f1d2.

Do you confirm you have this version when you do git log -1

[e665107]

Following is the newest log, i do git clone directly: db04a0e origin/master Introduce gattlib_connection_is_valid() to not access 'connection->device' 2d771d9 Fix gattlib_connection_is_connected 5406a97 More logging 4acf4aa connection: Ensure device_object_path is not freed multiple time f609f7d adapter: Added support to open multiple time the same adapter dc00902 Log when the adapter or device has been released cdd62f6 Return specific error code when the adapter or device has been removed 0e34df5 0.6.0 Single lock for all gattlib library 014c280 Refactor code to better separate gattlib_adapter_t, gattlib_device_t, gattlib_connection_t and their backends 22dca45 Require a lower version of cmake (same version as Ubuntu 22.04 LTS) 5049443 0.5.2 Ensure the connection structure is not freed when used by the connection thread a587aa9 0.5.1 gattlib_connect: Set the device has DISCONNECTED on error 67ff1de 0.5.0 origin/latest-fixes gattlib-py/adapter: Catch error on opening/closing BLE adapter 53e6c2c tests: Added new test that try to connect/disconnect a same device fcedfb9 gattlib_adapter: Improve BLE scan code with comments and renaming b57d954 gattlib_glib_mainloop: Ensure mainloop is initialized before using it

[oliviermartin]

You are missing the last commits: https://github.com/labapart/gattlib/commits/master/. You should do a git fetch or pull.

[e665107]

Head: master Add support to retrieve all manufacturer data from GATT advertisement packets Merge: origin/master Add support to retrieve all manufacturer data from GATT advertisement packets Push: origin/master Add support to retrieve all manufacturer data from GATT advertisement packets Tag: 0.6.0 (11)

Stashes (1) stash@{0} On master: temp0

[oliviermartin]

Now, you need to rebuild gattlib - and modify your code (check example https://github.com/labapart/gattlib/blob/master/examples/advertisement_data/advertisement_data.c)

[oliviermartin]

@e665107 , I close your issue as your original problem has been solved.