From 61aec54ea77f7ffc3cadb60aa504e7907c193884 Mon Sep 17 00:00:00 2001
From: olliw42 <waldmanns@gmx.de>
Date: Wed, 8 Nov 2023 18:42:46 +0100
Subject: [PATCH] AP_RCTelemetry: throttle CRSF request RX device info messages

---
 libraries/AP_RCTelemetry/AP_CRSF_Telem.cpp | 6 +++++-
 libraries/AP_RCTelemetry/AP_CRSF_Telem.h   | 1 +
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/libraries/AP_RCTelemetry/AP_CRSF_Telem.cpp b/libraries/AP_RCTelemetry/AP_CRSF_Telem.cpp
index cd21896afe7..43f68c4c6a1 100644
--- a/libraries/AP_RCTelemetry/AP_CRSF_Telem.cpp
+++ b/libraries/AP_RCTelemetry/AP_CRSF_Telem.cpp
@@ -468,7 +468,11 @@ void AP_CRSF_Telem::process_packet(uint8_t idx)
                 GCS_SEND_TEXT(MAV_SEVERITY_DEBUG,"%s: RX device ping failed", get_protocol_string());
             } else {
                 calc_device_ping(AP_RCProtocol_CRSF::CRSF_ADDRESS_CRSF_RECEIVER);
-                GCS_SEND_TEXT(MAV_SEVERITY_DEBUG,"%s: requesting RX device info", get_protocol_string());
+                uint32_t tnow_ms = AP_HAL::millis();
+                if ((tnow_ms - _crsf_version.last_request_info_ms) > 5000) {
+                    _crsf_version.last_request_info_ms = tnow_ms;
+                    GCS_SEND_TEXT(MAV_SEVERITY_DEBUG,"%s: requesting RX device info", get_protocol_string());
+                }
             }
             break;
         case DEVICE_PING:
diff --git a/libraries/AP_RCTelemetry/AP_CRSF_Telem.h b/libraries/AP_RCTelemetry/AP_CRSF_Telem.h
index 9bbeeaf03a2..431ceebff7a 100644
--- a/libraries/AP_RCTelemetry/AP_CRSF_Telem.h
+++ b/libraries/AP_RCTelemetry/AP_CRSF_Telem.h
@@ -335,6 +335,7 @@ private:
         bool use_rf_mode;
         AP_RCProtocol_CRSF::ProtocolType protocol;
         bool pending = true;
+        uint32_t last_request_info_ms;
     } _crsf_version;
 
     struct {