Runtime retrieval of bluetoothd version

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Hi,

Is there a way to retrieve the version of bluetoothd runtime?

Why is this necessary? Most bluetoothd versions add new or experimental DBus API's (in particular in the LE domain). However most of those interfaces/APIs do not turn up until later because they are dynamically added when devices appear. Since it is possible to work around missing BTLE DBus APIs using hci et al it would be nice to retrieve the bluetoothd version at runtime to match against a map of available non-experimental API per bluetoothd version. After all it is kind of hard to wait for never appearing BTLE interfaces due to using old Bluez/bluetoothd versions.

The only reliable way I have seen so far is bluetoothd --version which assumes that one knows where bluetoothd is located. At least in source I could not find any other way.

Thank you.

--
Alex--
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