fldigi - Initial work to enable PnP support for fldigi. Wrote a custom tool to map between an ALSA device and a PortAudio device.

src/et-portaudio/gen-fldigi-cfg.sh

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+#!/bin/bash
+# Author  : Gaston Gonzalez
+# Date    : 1 October 2025
+# Purpose : Temporary script to fast-fail dynamic fldigi config for PnP
+#
+# NOTE:
+#
+# THIS IS JUST USED DURING DEVELOPMENT. AN XML PARSER WILL BE USED TO MODIFY
+# THE FLDIGI CONFIG FOR THE FINAL PNP SOLUTION. SO THAT USER CHANGES CAN STILL
+# BE PERSISTED.
+
+CMD=et-portaudio
+PORT_AUDIO_CONF=conf.tmp
+FLDIGI_CONF_FILE="${HOME}/.fldigi/fldigi_def.xml"
+
+# clean up temporary config that may exist
+[[ -e ${PORT_AUDIO_CONF} ]] && rm ${PORT_AUDIO_CONF}
+
+[[ ! -e ${CMD} ]] && make
+./${CMD} 2>/dev/null > ${PORT_AUDIO_CONF}
+
+if [[ $? -ne 0 ]]; then
+  echo "No supported ET_AUDIO device found"
+  exit 1
+fi
+
+DEVICE=$(jq -r -e '.device' ${PORT_AUDIO_CONF})
+if [[ $? -ne 0 ]]; then
+  echo "Error getting PulseAudio device name for ET_AUDIO device"
+  exit 1
+fi
+
+INDEX=$(jq -r -e '.index' ${PORT_AUDIO_CONF})
+if [[ $? -ne 0 ]]; then
+  echo "Error getting PulseAudio device index for ET_AUDIO device"
+  exit 1
+fi
+
+et-log "Copying fldigi template..."
+cp -v ../../overlay/etc/skel/.fldigi/fldigi_def.xml ~/.fldigi/
+
+et-log "Updating PortAudio devices..."
+sed -i "s|^<AUDIOIO>.*|<AUDIOIO>1</AUDIOIO>|" ${FLDIGI_CONF_FILE}
+
+sed -i "s|^<PORTINDEVICE>.*|<PORTINDEVICE>${DEVICE}</PORTINDEVICE>|" ${FLDIGI_CONF_FILE}
+sed -i "s|^<PORTININDEX>.*|<PORTININDEX>${INDEX}</PORTININDEX>|" ${FLDIGI_CONF_FILE}
+
+sed -i "s|^<PORTOUTDEVICE>.*|<PORTOUTDEVICE>${DEVICE}</PORTOUTDEVICE>|" ${FLDIGI_CONF_FILE}
+sed -i "s|^<PORTOUTINDEX>.*|<PORTOUTINDEX>${INDEX}</PORTOUTINDEX>|" ${FLDIGI_CONF_FILE}