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Pi3 bluetooth, almost

September 18, 2016 — BarryK
I am on the track of getting Bluetooth working in the Raspberry Pi3, and then the Pi2.

Running Quirky, there was no Bluetooth controller found. After some research, and looking at Raspbian, I discovered a udev rule is required, and from systemd I found that 'hciattach' has to be run. Then I found that extra firmware is required.

So far, have got the controller working, or at least responding.


Some extra notes, for anyone reading this who is needing to do the same thing.

This info is useful:

What that doesn't explain though, is you also need /etc/udev/rules.d/99-com.rules (which can be edited to remove the group assignments).
This file is found in the Raspbian DEB 'raspberrypi-sys-mods'.

The systemd service that runs hciattach, as explained in the above link, is in Raspbian DEB 'pi-bluetooth'.

This is because Raspbian does this:

/usr/bin/hciattach /dev/serial1 bcm43xx 921600 noflow -

Where the udev rule creates a symlink of /dev/serial1 to /dev/ttyAMA0

Whereas, Alpine just does this:

hciattach /dev/ttyAMA0 bcm43xx 115200 noflow -

...interesting difference in the speed.

Tags: linux