[Bug 1565940] Re: bluetoothctl systematically hangs when there is no bluetooth hardware

[Daniel van Vugt]

> My particular use case is to detect, inside a shell script, if there
is any bluetooth hardware at all.

I suggest a better way to detect Bluetooth hardware is to check with the
kernel directly:

  if /sys/class/bluetooth/ exists and is non-empty then ...

The directory is created when the first Bluetooth controller is added to
the system, and becomes empty only after the last one is removed.

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https://bugs.launchpad.net/bugs/1565940

Title:
  bluetoothctl systematically hangs when there is no bluetooth hardware

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