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[modbus] Log the discarded bytes, not just how many (#19428)

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Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
This commit is contained in:
dalklein
2026-09-23 17:40:01 +01:00
committed by GitHub
co-authored by Claude Opus 5
parent d78d640abd
commit 70f8ec73c9
1 changed files with 5 additions and 0 deletions
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esphome/components/modbus/modbus.cpp
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@@ -1241,6 +1241,11 @@ void Modbus::clear_rx_buffer_(const LogString *reason, bool warn, size_t bytes_t
if (warn) {
ESP_LOGW(TAG, "Clearing buffer of %zu bytes - %s %" PRIu32 "us after last send", bytes, LOG_STR_ARG(reason),
micros() - this->last_send_);
#if ESPHOME_LOG_LEVEL >= ESPHOME_LOG_LEVEL_VERBOSE
char hex_buf[format_hex_pretty_size(MODBUS_MAX_LOG_BYTES)];
ESP_LOGV(TAG, " discarded: %s%s", format_hex_pretty_to(hex_buf, this->rx_buffer_.data(), bytes),
bytes > MODBUS_MAX_LOG_BYTES ? LOG_STR_LITERAL(" ...") : LOG_STR_LITERAL(""));
#endif
} else {
ESP_LOGV(TAG, "Clearing buffer of %zu bytes - %s %" PRIu32 "us after last send", bytes, LOG_STR_ARG(reason),
micros() - this->last_send_);