usb fix

scripts/daemon/lesavka-core.sh

@@ -156,12 +156,20 @@ for s in fs hs ss; do
 done
 
 # ── 4.  Video‑Control interface  (must be a real directory) ───────────
-mkdir -p "$F/control/header/h"                # REAL dir – no symlink
+mkdir -p "$F/control/header/h"          # real dir – must exist first
 
-# Link that directory into the per‑speed class dirs (relative links required)
+# The kernel may need a few ms to add class/{fs,hs,ss}; wait and link
 for s in fs hs ss; do
-    mkdir -p "$F/control/class/$s"
-    ln -sf ../../header/h  "$F/control/class/$s/h"
+    # give the kernel up to 0.5 s to create the directory
+    for _ in {1..50}; do
+        [[ -d "$F/control/class/$s" ]] && break
+        sleep 0.010
+    done
+    # some gadgets (FS‑only) never get “hs” – skip gracefully
+    [[ -d "$F/control/class/$s" ]] || continue
+
+    # finally create the mandatory ‘h’ link
+    ln -sf ../../header/h "$F/control/class/$s/h"
 done
 
 echo 0x0 >"$F/control/terminal/camera/default/bmControls"    2>/dev/null || true