Pi3 bluetooth, almost

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.

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Comments

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

This info is useful:
https://wiki.alpinelinux.org/wiki/Raspberry_Pi_3_-_Setting_Up_Bluetooth

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