unifying: acknowledge device when entering LTx

Apparently the Sw expects this report when LTx is written to register
F0.

1 files changed, 2 insertions, 0 deletions

diff --git a/hw/usb/hid-logitech-dj.c b/hw/usb/hid-logitech-dj.c
index 75b5bef2ea..5d0b6bebf2 100644
--- a/hw/usb/hid-logitech-dj.c
+++ b/hw/usb/hid-logitech-dj.c
@@ -189,6 +189,8 @@ static void lt_dfu_enter(USBLtunifyState *s, uint8_t device_index)
             // whether this is sent or not.
             /* TODO: power off? */
             dj_send_notif_conn_status(s, i + 1, false);
+            /* acknowledge DUD communication */
+            hidpp_notif_device_connection(s, device_index);
         }
     }
 }