diff --git a/wyoming_satellite/xvf_usb.py b/wyoming_satellite/xvf_usb.py
index 622b101..9542d21 100644
--- a/wyoming_satellite/xvf_usb.py
+++ b/wyoming_satellite/xvf_usb.py
@@ -152,12 +152,8 @@ class XVF3800Controller:
             _LOGGER.debug("Looking for PID %04x...", pid)
             dev = usb.core.find(idVendor=self._vendor_id, idProduct=pid)
             if dev is not None:
-                try:
-                    if dev.is_kernel_driver_active(0):
-                        _LOGGER.info("Detaching kernel driver from device...")
-                        dev.detach_kernel_driver(0)
-                except Exception as exc:
-                    _LOGGER.warning("Could not detach kernel driver: %s", exc)
+                # НЕ делаем detach_kernel_driver() — это отключает audio интерфейсы!
+                # Control transfer с CTRL_TYPE_VENDOR работает без claim interface
                 
                 self._dev = dev
                 _LOGGER.info(