Flashing via picotool is the new default.

software/flash.sh

@@ -3,11 +3,75 @@
 DEVICEPATH=/dev/disk/by-label/RPI-RP2
 IMAGEPATH=lib/micropython/ports/rp2/build-TONBERRY_RPI_PICO_W/firmware.uf2
 
-while [ ! -e "$DEVICEPATH" ] ; do sleep 1; echo 'Waiting for RP2...'; done
+flash_via_mountpoint()
+{
+    while [ ! -e "$DEVICEPATH" ] ; do sleep 1; echo 'Waiting for RP2...'; done
+    
+    set -eu
+    
+    while [ ! -e "$DEVICEPATH" ] ; do sleep 1; echo 'Waiting for RP2...'; done
+    
+    udisksctl mount -b "$DEVICEPATH"
+    cp "$IMAGEPATH" "$(findmnt "$DEVICEPATH" -n -o TARGET)"
+}
 
-set -eu
+PID="2e8a"
+VID="0003"
 
-while [ ! -e "$DEVICEPATH" ] ; do sleep 1; echo 'Waiting for RP2...'; done
+flash_via_picotool()
+{
+    while [ ! "$(lsusb -d $PID:$VID)" ] ; do sleep 1; echo 'Waiting for RP2 (USB)...'; done
+    
+    set -eu
+    
+    while [ ! "$(lsusb -d $PID:$VID)" ] ; do sleep 1; echo 'Waiting for RP2 (USB)...'; done
 
-udisksctl mount -b "$DEVICEPATH"
-cp "$IMAGEPATH" "$(findmnt "$DEVICEPATH" -n -o TARGET)"
+    local serial
+    serial="$(lsusb -d $PID:$VID -v | grep "iSerial" | awk '{print $3}')"
+    mapfile -t bus_device < <(lsusb -d 2e8a:0003 | awk '{print $2"\n"$4}')
+    local bus="${bus_device[0]}"
+    local device="${bus_device[1]//[!0-9]/}"
+    echo "Found RP2 with serial $serial on Bus $bus Device $device"
+    
+    picotool load --bus "$bus" --address "$device" "$IMAGEPATH" 
+}
+
+FLASH_VIA_MOUNTPOINT=0
+
+usage()
+{
+    echo "Usage: $0  [ -m | --via-mountpoint ]"
+    echo
+    echo "  -m, --via-mountpoint    Mount first found RP2 and flash image by"
+    echo "                          copying to mountpoint."
+    exit 2
+}
+
+PARSED_ARGUMENTS=$(getopt -a -n "$0" -o m --long via-mountpoint -- "$@")
+# shellcheck disable=SC2181
+# Indirect getopt return value checking is okay here
+if [ "$?" != "0" ]; then
+  usage
+fi
+
+eval set -- "$PARSED_ARGUMENTS"
+while :
+do
+    case "$1" in
+        -m | --via-mountpoint)   FLASH_VIA_MOUNTPOINT=1      ; shift   ;;
+        --) shift; break ;;
+        *) echo "Unexpected option: $1"
+           usage ;;
+    esac
+done
+
+if [ "$1" ]; then
+    echo "Unexpected positional arguments: $1"
+    usage
+fi
+
+if [ "$FLASH_VIA_MOUNTPOINT" -eq 0 ]; then
+    flash_via_picotool
+else
+    flash_via_mountpoint
+fi