How to identify the initiator system in a Bluetooth connection?

[summer]

Hi,everybod,I use nrf51822 to do bluetooth keyboard, I hope the function is: After bluetooth keyboard connect the host,how to determine whether the connection is window system or MAC system?

[Torsten Robitzki]

You can't. Even if you go down to the link layer, you will at most be able to identify the manufactor of the BLE stack. The best you can do, is to use some kind of heuristics, like Windows preferes to use this connection parameters and so on.

Why do you care?

[summer]

OK，thank you very much