From 86656054c5cfda5a66677c4856c1c720bb05f750 Mon Sep 17 00:00:00 2001
From: Brad Stein <Brad.Stein@gmail.com>
Date: Wed, 7 Jan 2026 03:24:17 -0300
Subject: [PATCH] uvc: ack SET_CUR then send status

---
 server/src/bin/lesavka-uvc.rs | 21 ++++++++++++---------
 1 file changed, 12 insertions(+), 9 deletions(-)

diff --git a/server/src/bin/lesavka-uvc.rs b/server/src/bin/lesavka-uvc.rs
index e53e863..d21c1b5 100644
--- a/server/src/bin/lesavka-uvc.rs
+++ b/server/src/bin/lesavka-uvc.rs
@@ -378,15 +378,18 @@ fn handle_setup(
     }
     let interface = map_interface(interface_raw, selector, interfaces, debug);
 
-        if !is_in && req.b_request == UVC_SET_CUR {
-            if interface != interfaces.streaming {
-                let _ = send_stall(fd, uvc_send_response);
-                return;
-            }
-            *pending = Some(PendingRequest { interface, selector });
-            if debug {
-                eprintln!(
-                    "[lesavka-uvc] SET_CUR queued len={} iface={} sel={}",
+    if !is_in && req.b_request == UVC_SET_CUR {
+        if interface != interfaces.streaming {
+            let _ = send_stall(fd, uvc_send_response);
+            return;
+        }
+        *pending = Some(PendingRequest { interface, selector });
+        let len = req.w_length as usize;
+        let payload = vec![0u8; len.min(UVC_DATA_SIZE)];
+        let _ = send_response(fd, uvc_send_response, &payload);
+        if debug {
+            eprintln!(
+                "[lesavka-uvc] SET_CUR queued len={} iface={} sel={}",
                 req.w_length, interface, selector
             );
         }