From e7bff41c0c2bedab0e3b603e7020c8e388cea5dd Mon Sep 17 00:00:00 2001
From: Brad Stein <brad.stein@gmail.com>
Date: Fri, 4 Jul 2025 14:39:13 -0500
Subject: [PATCH] fixing daemon for cam

---
 scripts/daemon/lesavka-core.sh | 34 ++++++++++++++--------------------
 1 file changed, 14 insertions(+), 20 deletions(-)

diff --git a/scripts/daemon/lesavka-core.sh b/scripts/daemon/lesavka-core.sh
index 7263b83..e3eb8c2 100644
--- a/scripts/daemon/lesavka-core.sh
+++ b/scripts/daemon/lesavka-core.sh
@@ -132,37 +132,31 @@ echo 333333  >"$F/streaming/uncompressed/u/f1/dwDefaultFrameInterval"  # 30 fp
 echo 333333  >"$F/streaming/uncompressed/u/f1/dwFrameInterval"
 
 # ── 3.  REQUIRED HEADER LINKS ──────────────────────────────────────
-# NOTE: do *not* try to delete the kernel‑made “u1” place‑holder – the
-# easiest way is to wipe the whole gadget at the top of the script (you
-# already do that) and recreate everything cleanly.
-
-# 3‑a  Streaming‑interface header directory
 mkdir -p "$F/streaming/header/h"
 
-# 3‑b  Per‑speed “class” directories *must* exist before the links
+# 3‑a  Link format #1 into the header *first*
+ln -sf ../../uncompressed/u  "$F/streaming/header/h/1"
+echo 1 >"$F/streaming/header/h/bNumFormats"
+echo 0 >"$F/streaming/header/h/bmInfo"
+
+# 3‑b  Wait for the kernel to create the class/{fs,hs,ss} dirs (≤100 ms)
 for s in fs hs ss; do
-    mkdir -p "$F/streaming/class/$s"
+    for _ in {1..20}; do
+        [ -d "$F/streaming/class/$s" ] && break
+        sleep 0.005
+    done
     ln -sf ../../header/h  "$F/streaming/class/$s/h"
 done
 
-# 3‑c  Link format #1 (our YUY2 descriptor) into the header.
-#      Path is *relative* to header/h, hence ../../uncompressed/u
-ln -sf ../../uncompressed/u  "$F/streaming/header/h/1"
-
-echo 1  >"$F/streaming/header/h/bNumFormats"   # exactly one format
-echo 0  >"$F/streaming/header/h/bmInfo"
-
-# 3‑d  Video‑CONTROL side needs the very same header
+# 3‑c  CONTROL‑side header uses the same directory
 mkdir -p "$F/control/header/h"
 for s in fs hs ss; do
-    mkdir -p "$F/control/class/$s"
+    for _ in {1..20}; do
+        [ -d "$F/control/class/$s" ] && break || sleep 0.005
+    done
     ln -sf ../../header/h  "$F/control/class/$s/h"
 done
 
-# Friendly string for entity (unchanged)
-mkdir -p "$F/control/header/strings/0x409"
-echo "Lesavka UVC" >"$F/control/header/strings/0x409/label"
-
 # Friendly string for the camera entity
 mkdir -p "$F/control/header/strings/0x409"
 echo "Lesavka UVC" >"$F/control/header/strings/0x409/label"