Zephyr HCI USB vs Bluez version


Piotr Barszczewski <piotr@...>
 

Hello,

Is there some guide on which of the recent kernel/bluez/linux versions does the HCI_USB ( https://github.com/zephyrproject-rtos/zephyr/tree/master/samples/bluetooth/hci_usb ) work on nRF52840_pca100056 board? I’m having quite hard time figuring how to make it work beyond being able to scan, connect or disconnect.

As an example I usually try the following with any HCI device:
1. Connect to my test device with gatttool
2. Try to discover characteristics
3. Send a few bytes with char-write-cmd …
4. Observe on test device if it was received
5. Disconnect

The problem I’m observing on Ubuntu 20 with kernel 5.8.0-50 is that the nRF DK enumerating as port hci1 always has it’s address set to 00:00:00:00:00:00 and does not do anything beyond connecting. Tried with Bluez 5.55 and 5.58, my bluetoothd.service already has -E flag set. Usually I’m working with CSR dongles and never had issues with multiple HCI devices connected and thought that it would be a quick test do compare how nRF52840 performs with Zephyr. Yet here I am out of ideas on what to do next, asking the very basic question, bit puzzled on how yo make such a simple thing work. Would really appreciate if someone could point me to how to make Zephyr HCI work with any Bluez

Best regards

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