From 7befca8a91dfbe52da36d97e7c2fdd1877086a97 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mikolai=20G=C3=BCtschow?= <mikolai.guetschow@tu-dresden.de>
Date: Tue, 29 Apr 2025 10:59:29 +0200
Subject: [PATCH] tools/uf2/nrf52_softdevice_check: abort when several
 bootloaders present

The current tooling cannot distinguish which one is the correct one to flash.
---
 dist/tools/uf2/nrf52_softdevice_check.sh | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/dist/tools/uf2/nrf52_softdevice_check.sh b/dist/tools/uf2/nrf52_softdevice_check.sh
index 9a30aca366..88a752a62c 100755
--- a/dist/tools/uf2/nrf52_softdevice_check.sh
+++ b/dist/tools/uf2/nrf52_softdevice_check.sh
@@ -24,10 +24,17 @@ if [ -z "${MOUNTPOINT}" ]; then
     exit 1
 fi
 
+if [ ! "$(echo "${MOUNTPOINT}" | wc -l)" -eq 1 ]; then
+    echo "More than one device with UF2 bootloader found!"
+    echo "RIOT cannot distinguish the correct device."\
+    "Please connect no more than one device at a time."
+    exit 1
+fi
+
 INFO_FILE="${MOUNTPOINT}/INFO_UF2.TXT"
 
 if [ ! -f "${INFO_FILE}" ]; then
-    echo "No INFO_FILE.TXT found in UF2 Mass Storage Device!"
+    echo "No INFO_UF2.TXT found in UF2 Mass Storage Device!"
     exit 1
 fi