Brian Riddle brianjriddle

Bluetooth Audio from a Lenovo X220 running FreeBSD 13.0-CURRENT

2020-04-05

The FreeBSD Handbook Bluetooth chapter is, as usual, great but I needed to do a bit more (or perhaps in a more specific way) to get audio from the Broadcom Bluetooth chip in my Lenovo X220 to the Soundblaster Roar SR20 that lives in my kitchen.

/boot/loader.conf

Load the user character device driver cuse and all the netgraph bluetooth modules, this is better done earlier to avoid the annoying (and possibly significant) WARNING: attempt to domain_add(xyz) after domainfinalize() errors at startup.

cuse_load="YES"

ng_ubt_load="YES" # for most USB bluetooth, for others, refer to the handbook

	1. download powerbroker frome here http://download1.beyondtrust.com/Technical-Support/Downloads/PowerBroker-Identity-Services-Open-Edition/?Pass=True

	2. sudo chmod a+x {filename}
	sudo ./pibsfilename.sh

	3. sudo domainjoin-cli join --disable ssh contoso.local administrator@contoso.local

	4. sudo vim /etc/pam.d/common-session
	add: "session [success=ok default=ignore] pam_lsass.so"

	#!/bin/bash

	set -exo pipefail

	BUILD_ENV=$1
	if [ `uname` == 'Darwin' ]; then
	OSX=1
	JSCOMPRESSOR="yuicompressor --type js"
	else
	OSX=

	(defmacro test->
	"Takes an expression and a set of test/form pairs. Threads expr (via ->)
	through each form for which the corresponding test expression (not threaded) is true."
	[expr
	& clauses]
	(assert (even? (count clauses)))
	(let [g (gensym)
	pstep (fn [[test step]] `(if ~test (-> ~g ~step) ~g))]
	`(let [~g ~expr
	~@(interleave (repeat g) (map pstep (partition 2 clauses)))]

	require 'chunky_png'

	original = ChunkyPNG::Image.from_file "original.png"

	target = ChunkyPNG::Image.new(original.width + (355 * 3), original.height)

	break_columns = [100, 310 + 100, 620 + 100]

	target_x = 0
	(0...original.width).each do \|x\|