Install sleepwatcher to restart bluetooth & friends

install-sleepwatcher-bluetooth-fix.sh

#!/bin/sh

brew install sleepwatcher

# https://gist.github.com/jagtesh/de81fa1c6b45fad0ff8e
sudo cp /usr/local/Cellar/sleepwatcher/2.2/de.bernhard-baehr.sleepwatcher-20compatibility.plist /Library/LaunchAgents/
sudo cp /usr/local/Cellar/sleepwatcher/2.2/etc/sleepwatcher/rc.* /etc/

# Add bluetooth script to /etc/rc.wakeup (the script requires root)
sudo tee -a /etc/rc.wakeup <<EOF

##
## Restart blued & load/unload bluetooth driver.
##

function msg() {
    foo=\$2
    what="\$(tr '[:lower:]' '[:upper:]' <<< \${foo:0:1})\${foo:1}"
    echo ">> \${what}ing \$1...";
}

function __blued() {
    msg "blued" "\$1";
    sudo launchctl \$1 /System/Library/LaunchDaemons/com.apple.blued.plist
}

function __driver() {
    msg "bluetooth driver" "\$1";
    sudo kext\$1 -b com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport
}

__blued "unload"
__driver "unload"

sleep 2;

__driver "load";
__blued "load"

EOF

# Load the agent to start sleepwatcher
sudo launchctl load /Library/LaunchAgents/de.bernhard-baehr.sleepwatcher-20compatibility.plist

Thanks for this. Very helpful for my MBP Bluetooth woes.