fldigi Initial fldigi wrapper script. This is WiP. I need to port the configuration update logic from the test script under src/et-portaudio. Added fldigi to the list of services/modes to kill

overlay/opt/emcomm-tools/bin/et-fldigi

@@ -0,0 +1,73 @@
+#!/bin/bash
+#
+# Author  : Gaston Gonzalez
+# Date    : 2 October 2025
+# Purpose : Wrapper script for starting fldigi with PnP support
+#
+# Preconditions
+# 1. Supported radio and audio interface are connected and properly detected
+#
+# Postconditions
+# 1. Stop all running EmComm Tools modes
+# 2. fldigi core settings updated (e.g., CAT, audio, user config and ETC defaults)
+# 3. fldigi started
+
+usage() {
+  echo "usage: $(basename $0) <command>"
+  echo "  start           - Update config and start fldigi"
+  echo "  update-config   - Update config"
+}
+
+if [[ $# -ne 1 ]]; then
+  usage
+  exit 1
+fi
+
+notify_user() {
+  notify-send \
+   -t 5000 \
+   --app-name="EmComm Tools" \
+   "$1"
+}
+
+start() {
+  /opt/emcomm-tools/bin/et-kill-all && update-config && /usr/local/bin/fldigi &
+}
+
+update-config () {
+
+    # 1. Check if the audio symlink was created by the udev rules
+    if [[ -e /dev/et-audio ]]; then
+
+       # 2. Check that this device was properly tagged with the ET_AUDIO env variable 
+       APLAY_OUT=$(arecord -l | grep ET_AUDIO)
+       if [[ $? -eq 0 ]]; then
+
+         ## Configure ALSA settings for sound card
+         /opt/emcomm-tools/bin/et-audio update-config
+
+       else
+         et-log "No ET_AUDIO device detected."
+         notify_user "Can't start fldigi. No ET_AUDIO device detected."
+         exit 1
+       fi
+    else
+      et-log "No ET_AUDIO device plugged in."
+      notify_user "Can't start fldigi. No supported audio device plugged in."
+      exit 1
+    fi
+}
+
+case $1 in
+  start)
+    start
+    ;;
+  update-config)
+    update-config
+    ;;
+  *)
+    echo "Invalid command."
+    usage
+    exit 1
+  ;;
+esac

overlay/opt/emcomm-tools/bin/et-kill-all

@@ -2,7 +2,7 @@
 #
 # Author   : Gaston Gonzalez
 # Date     : 12 November 2024
-# Updated  : 7 February 2025
+# Updated  : 2 October 2025
 # Purpose  : Stops all EmComm Tools sound-based services (i.e. modems) and
 #            amatuer radio applications to ensure a clean start for the next mode.
 
@@ -33,6 +33,10 @@ stop_all_services() {
   pkill et-vara
   pkill VARA 
 
+  # Stop fldigi
+  pkill fldigi
+  pkill et-fldigi
+
   stop_pat
 }