diff --git a/scripts/daemon/lesavka-core.sh b/scripts/daemon/lesavka-core.sh
index 21b66b7..e3986e9 100644
--- a/scripts/daemon/lesavka-core.sh
+++ b/scripts/daemon/lesavka-core.sh
@@ -116,22 +116,28 @@ echo 32      >"$U/req_number" 2>/dev/null || true
 mkdir -p "$G/functions/uvc.usb0"
 F="$G/functions/uvc.usb0"
 
-# -- 1.  BUILD A MINIMAL MJPEG FORMAT (1280×720 @30 fps) ------------
-mkdir -p "$F/streaming/uncompressed/u1"
-echo 1280     >"$F/streaming/uncompressed/u1/wWidth"
-echo 720      >"$F/streaming/uncompressed/u1/wHeight"
-echo 2764800  >"$F/streaming/uncompressed/u1/dwMaxVideoFrameBufferSize"
-echo 333333   >"$F/streaming/uncompressed/u1/dwFrameInterval(0)"   # 30 fps
-echo 1        >"$F/streaming/uncompressed/u1/bFrameIndex"
-echo 1        >"$F/streaming/uncompressed/u1/bmFramingInfo"
+# ── 1.  FORMAT DESCRIPTOR ──────────────────────────────────────────
+#     Uncompressed YUY2, 16 bpp
+mkdir -p "$F/streaming/uncompressed/u"
+echo YUY2  >"$F/streaming/uncompressed/u/guidFormat"
+echo 16    >"$F/streaming/uncompressed/u/bBitsPerPixel"
 
-# -- 2.  STREAMING‑HEADER and CONTROL‑HEADER LINKS (required) -------
+# ── 2.  FRAME DESCRIPTOR (index 1) ─────────────────────────────────
+mkdir -p "$F/streaming/uncompressed/u/f1"
+echo 1280      >"$F/streaming/uncompressed/u/f1/wWidth"
+echo 720       >"$F/streaming/uncompressed/u/f1/wHeight"
+echo 2764800   >"$F/streaming/uncompressed/u/f1/dwMaxVideoFrameBufferSize"
+echo 333333    >"$F/streaming/uncompressed/u/f1/dwDefaultFrameInterval"   # 30 fps
+echo 333333    >"$F/streaming/uncompressed/u/f1/dwFrameInterval"
+
+# ── 3.  REQUIRED HEADER LINKS ──────────────────────────────────────
 mkdir -p "$F/streaming/header"
-ln -sf ../../uncompressed/u1     "$F/streaming/header/h"       # first alt‑setting
-mkdir -p "$F/control/header"
-ln -sf ../../streaming/header/h  "$F/control/header/h"         # tie to control IF
+ln -sf ../../uncompressed/u           "$F/streaming/header/h"
 
-# -- 3.  Human‑readable string for the camera -----------------------
+mkdir -p "$F/control/header"
+ln -sf ../../streaming/header/h       "$F/control/header/h"
+
+# Friendly string
 mkdir -p "$F/control/header/strings/0x409"
 echo "Lesavka UVC" >"$F/control/header/strings/0x409/label"