Script to toggle Earpods (and save previous audio input/output) for hotkey. Pop!_OS 24

toggle-earpods.sh

#!/usr/bin/env bash
# Toggle audio input/output between EarPods and your previous devices on Pop!_OS 24

set -euo pipefail

STATE_FILE="${XDG_CACHE_HOME:-$HOME/.cache}/earpods_state"

EARPODS_SINK="alsa_output.usb-Apple__Inc._EarPods_HQ9993P44X-00.analog-stereo"
EARPODS_SOURCE="alsa_input.usb-Apple__Inc._EarPods_HQ9993P44X-00.mono-fallback"

get_default_sink() {
  pactl info | grep "Default Sink" | awk '{print $3}'
}

get_default_source() {
  pactl info | grep "Default Source" | awk '{print $3}'
}

switch_to() {
  local sink="$1"
  local source="$2"

  echo "→ Switching output to $sink"
  pactl set-default-sink "$sink"
  for input in $(pactl list short sink-inputs | awk '{print $1}'); do
    pactl move-sink-input "$input" "$sink"
  done

  echo "→ Switching input to $source"
  pactl set-default-source "$source"
  for output in $(pactl list short source-outputs | awk '{print $1}'); do
    pactl move-source-output "$output" "$source"
  done
}

# Load state if it exists
if [[ -f "$STATE_FILE" ]]; then
  source "$STATE_FILE"
else
  PREV_SINK=""
  PREV_SOURCE=""
fi

CURRENT_SINK=$(get_default_sink)
CURRENT_SOURCE=$(get_default_source)

if [[ "$CURRENT_SINK" == "$EARPODS_SINK" && "$CURRENT_SOURCE" == "$EARPODS_SOURCE" ]]; then
  echo "EarPods are currently active — toggling back..."
  TARGET_SINK="${PREV_SINK:-$(pactl info | grep 'Default Sink' | awk '{print $3}')}"
  TARGET_SOURCE="${PREV_SOURCE:-$(pactl info | grep 'Default Source' | awk '{print $3}')}"
  switch_to "$TARGET_SINK" "$TARGET_SOURCE"
  rm -f "$STATE_FILE"
else
  echo "Saving current devices and switching to EarPods..."
  mkdir -p "$(dirname "$STATE_FILE")"
  echo "PREV_SINK=$CURRENT_SINK" > "$STATE_FILE"
  echo "PREV_SOURCE=$CURRENT_SOURCE" >> "$STATE_FILE"
  switch_to "$EARPODS_SINK" "$EARPODS_SOURCE"
fi

echo "✅ Done."