No longer works in OSX Monterey

[pedropombeiro]

After upgrading from Catalina to Monterey, it seems that scan is no longer working, as no devices are listed anymore:

$ python3 -m ph4_walkingpad.main -s --debug
2021-11-02 10:12:15 pedros-macbookpro16.home.pombei.ro asyncio[49062] DEBUG Using selector: KqueueSelector
2021-11-02 10:12:15 pedros-macbookpro16.home.pombei.ro ph4_walkingpad.cmd[49062] DEBUG Starting looper for loop <_UnixSelectorEventLoop running=False closed=False debug=False>
2021-11-02 10:12:15 pedros-macbookpro16.home.pombei.ro ph4_walkingpad.pad[49062] INFO Scanning for peripherals...
2021-11-02 10:12:15 pedros-macbookpro16.home.pombei.ro bleak.backends.corebluetooth.CentralManagerDelegate[49062] DEBUG centralManagerDidUpdateState_
2021-11-02 10:12:15 pedros-macbookpro16.home.pombei.ro bleak.backends.corebluetooth.CentralManagerDelegate[49062] DEBUG Bluetooth powered on
2021-11-02 10:12:15 pedros-macbookpro16.home.pombei.ro bleak.backends.corebluetooth.CentralManagerDelegate[49062] DEBUG 'isScanning' changed
2021-11-02 10:12:20 pedros-macbookpro16.home.pombei.ro bleak.backends.corebluetooth.CentralManagerDelegate[49062] DEBUG 'isScanning' changed

NOTE: This is probably related: hbldh/bleak#635

[ph4r05]

Thanks for the report! I can confirm this is an existing problem in the BT lib Bleak / OSX Monterey.

Hopefully it gets fixed soon. Unfortunately, there is not much we can do about it right now.

[pedropombeiro]

It looks like we need to specify the service UUID (00010203-0405-0607-0809-0a0b0c0d1912?) we want to scan for when calling Bleak.

[ph4r05]

thanks for suggestion @pedropombeiro. Pls did you successfully tried to use it?

[pedropombeiro]

I haven't @ph4r05. I'm using a project that sits one layer above this one, so I haven't yet patched this project in that one to test it out.

[ph4r05]

@pedropombeiro if there is a working code that sets service uuid and manages to connect I can apply the fix. I was not able to find PoC in the referenced issue.

[ph4r05]

As far as I can see, there are only some monkey-patching attempts to address this issue. When Bleak has a working interface so this workaround can be used, I can incorporate the fix. So it remains unfixed for the time being.

[ph4r05]

After a new release with hbldh/bleak#692 is out I will give it a try

[ph4r05]

@pedropombeiro it works again! :)

[pedropombeiro]

@pedropombeiro it works again! :)

Thanks a lot for shepherding this @ph4r05! I'll give it a try!

[ph4r05]

note: avoid using -a or --address, it is mandatory to scan devices first on OSX 12+, so address will be picked up after scanning finishes.