test if MyGadget already exists

2026-07-02 10:29:54 +00:00
parent cc0b37af8b
commit 3ef2ca02a6
1 changed files with 8 additions and 3 deletions
@@ -4,17 +4,22 @@
 # https://pip-assets.raspberrypi.com/categories/685-app-notes-guides-whitepapers/documents/RP-009276-WP/Using-OTG-mode-on-Raspberry-Pi-SBCs

 # Is the dwc2 overlay installed?  Nothing will work if it isn't.
-LOGGER="systemd-cat -t gadget.sh"
 if lsmod | grep -q "dwc2"; then
-    $LOGGER -p info "DWC2 module loaded, setting up OTG gadget serial and ethernet"
+    systemd-cat -t gadget.sh -p info echo "DWC2 module loaded, setting up OTG gadget serial and ethernet"
 else
-    $LOGGER -p warning "DWC2 module missing.  Aborting OTG setup"
+    systemd-cat -t gadget.sh -p warning echo "DWC2 module missing.  Aborting OTG setup."
    exit 1
 fi


 sudo modprobe libcomposite
 cd /sys/kernel/config/usb_gadget
+# Was the script already run?
+if [ -d "MyGadget" ]; then
+    systemd-cat -t gadget.sh -p warning echo "MyGadget already exists.  Aborting OTG setup."
+    exit 1
+fi
+
 # Create our new gadget
 sudo mkdir MyGadget
 cd MyGadget