Steam Link SSH & how to disable Bluetooth

steam-link.md

Steam link

Factory reset

Create the file factory_reset.txt with 1 value inside on a FAT32 USB drive and booting the Link with it plugged in.

Enable SSH

Create the /steamlink/config/system/enable_ssh.txt empty file on a FAT32 USB drive and booting the Link with it plugged in.

You can now connect to your Steam Link using SSH:

• username: root
• password: steamlink or steamlink123

Change with passwd the password after first login or remove /mnt/config/system/enable_ssh.txt to disable SSH.

Services

All the services are launched from /etc/init.d/startup

Disabling bluetooth

Edit the file /etc/init.d/startup/S13bluetooth.sh and comment the last line:

#!/bin/sh

FACTORY_DIR=/mnt/factory_setting
BT_MAC_FILE=${FACTORY_DIR}/BT_MAC_ADDR
BT_CAL=mrvl/BTCalData_sd8897.conf

get_bt_mac_address() {
        # Get mac address from file and insert semicolons between octets:
        # 021122334455 => 02:11:22:33:44:55
        cat $BT_MAC_FILE | sed -r 's/(..)(..)(..)(..)(..)(..)/\1:\2:\3:\4:\5:\6/'
}


# Bluetooth
# note: the bluetooth module must be insmod'ed after wifi or else the
# chip firmware is not loaded properly and bluetooth will fail to work
if [ -f "${BT_MAC_FILE}" ]; then
        BG_MAC_ARG="bt_mac=$(get_bt_mac_address)"
else
        echo "warning bluetooth mac address file not found: ${BT_MAC_FILE}"
fi

echo "modprobe bt8xxx ${BG_MAC_ARG} cal_cfg=${BT_CAL} psmode=0"
modprobe bt8xxx ${BG_MAC_ARG} cal_cfg=${BT_CAL} psmode=0

#/etc/init.d/bluetooth.sh &

We can't simply remove /etc/init.d/startup/S13bluetooth.sh because S15audio.sh relies on it using BlueALSA backend.

Tunning

Bandwith

cd /mnt/config/system
echo "--hardwarebitratelimit 50000" > streaming_args.txt

echo "CAMQABgAIAAoADCgjQZAAA==" > streaming_settings.b64
base64 -d streaming_settings.b64 > streaming_settings.bin
rm streaming_settings.b64

Binary file has been dumped using:

base64 streaming_settings.bin
CAMQABgAIAAoADCgjQZAAA==

https://mcd1992.blogspot.com/2015/10/removing-steam-link-bandwidth-limit.html -rwxr-xr-x 1 root root 780 Jan 1 1970 S13bluetooth.sh