Add --all feature to list-usb-cameras

Author: foosel

scripts/files/camera-streamer/list-usb-cameras

@@ -1,6 +1,15 @@
 #!/bin/bash
 
+ALL=$1
+
 echo "Available USB camera devices:"
 for path in /dev/v4l/by-id/usb-*-video-index0; do
-    echo "  $path"
+    if [[ "$ALL" == "--all" ]]; then
+        echo
+        echo "=== $path ==="
+        echo
+        v4l2-ctl --device "$path" --all --list-formats --list-formats-ext
+    else
+        echo "  $path"
+    fi
 done