Raspberry Pi and Zephyr Controller: Can't init device hci1

Raspberry Pi and Zephyr Controller: Can't init device hci1

[Eric Cooper]

Hello, I am running the Zephyr BLE Controller described
https://devzone.nordicsemi.com/b/blog/posts/nrf5x-support-within-the-zephyr-project-rtos
and I can't bring up the hci interface.

sudo hciconfig hci1 up
Can't init device hci1: Cannot assign requested address (99)

This is the same issue as described here
https://www.spinics.net/lists/linux-bluetooth/msg71100.html except I
am running Raspberry Pi version 9.4 and bluez 5.50.

hciconfig does show the device:

hciconfig
hci1: Type: Primary  Bus: UART
BD Address: 00:00:00:00:00:00  ACL MTU: 27:7  SCO MTU: 0:0
DOWN
RX bytes:245 acl:0 sco:0 events:18 errors:0
TX bytes:103 acl:0 sco:0 commands:18 errors:0




btmon output during the hci up operation:

@ RAW Open: hciconfig (privileged) version 2.22

{0x0005} 290.771000
@ RAW Close: hciconfig



This bug from 2014 describes it as maybe not fixed in Raspbian -
https://bugzilla.kernel.org/show_bug.cgi?id=60824 and
https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git/commit/?id=f9f462faa02777f497eb25255683a94e0c054de6.
Is there a way to determine if it is included in the current version
of Raspbian?

The same board works fine when connected to a Ubuntu 16 system.

Please let me know if there is more information I can provide and
thanks in advance,
Eric