Hi,

On Thu, Aug 23, 2018, sxzxchen@... wrote:

I bought a official nrf52832 development kits and ported zephyr
project successfully. It runs fine with my ubuntu host,via btattach
and btmgmt tools.But it didn't work with my nxp embedded linux,the
linux version is 4.1.15 and supports hciattach hciconfig tools
only.When I tried to bring the bluetooth module up with hciconfig hci0
up,an error comes up:

The 4.1 kernel is too old to support controllers without a public
address. IIRC you need at least a 4.4 kernel, but ideally something much
newer than that.

Johan