flash-edl: block host qcserial driver and remove sleep after Fastboot EDL kick

flash-edl.sh

@@ -27,15 +27,39 @@ if command -v systemctl >/dev/null 2>&1; then
     systemctl stop ModemManager 2>/dev/null || true
     MM_WAS_ACTIVE=1
   fi
+elif command -v sv >/dev/null 2>&1 && [ -e /var/service/ModemManager ]; then
+  if sv status ModemManager 2>/dev/null | grep -q "^run:"; then
+    echo "[*] Temporarily stopping host ModemManager service during EDL flash..."
+    sv stop ModemManager 2>/dev/null || true
+    MM_WAS_ACTIVE=2
+  fi
+fi
+
+QCSERIAL_CONF="/run/modprobe.d/bananarchy-edl.conf"
+if [ "$(id -u)" -eq 0 ]; then
+  mkdir -p /run/modprobe.d 2>/dev/null || true
+  printf "blacklist qcserial\ninstall qcserial /bin/true\n" > "$QCSERIAL_CONF" 2>/dev/null || true
+  if lsmod 2>/dev/null | grep -q "^qcserial "; then
+    echo "[*] Unloading host qcserial kernel module so it does not claim 05c6:9008..."
+    modprobe -r qcserial 2>/dev/null || rmmod qcserial 2>/dev/null || true
+  fi
+  udevadm control --reload 2>/dev/null || true
 fi
 
 cleanup() {
+  if [ -f "$QCSERIAL_CONF" ]; then
+    rm -f "$QCSERIAL_CONF" 2>/dev/null || true
+    udevadm control --reload 2>/dev/null || true
+  fi
   if [ -n "${SUDO_UID:-}" ] && [ -n "${SUDO_GID:-}" ] && [ -d "$BASE_DIR/backup" ]; then
     chown -R "$SUDO_UID:$SUDO_GID" "$BASE_DIR/backup" 2>/dev/null || true
   fi
   if [ "$MM_WAS_ACTIVE" -eq 1 ]; then
     echo "[*] Restarting host ModemManager service..."
     systemctl start ModemManager 2>/dev/null || true
+  elif [ "$MM_WAS_ACTIVE" -eq 2 ]; then
+    echo "[*] Restarting host ModemManager service..."
+    sv start ModemManager 2>/dev/null || true
   fi
 }
 trap cleanup EXIT INT TERM