From 4a7c58d5aed36741527ae890aec3ae6cb9d96b11 Mon Sep 17 00:00:00 2001
From: Oliver Kleinecke <okleinecke@web.de>
Date: Thu, 2 Jul 2026 03:26:56 +0200
Subject: [PATCH] [usb_uart] Fix format specifier warnings for uint32_t in
 ft23xx and pl2303 (#17342)

---
 esphome/components/usb_uart/ft23xx.cpp | 7 ++++---
 esphome/components/usb_uart/pl2303.cpp | 5 +++--
 2 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/esphome/components/usb_uart/ft23xx.cpp b/esphome/components/usb_uart/ft23xx.cpp
index 3b0e05ba537..2e8ff8bcb57 100644
--- a/esphome/components/usb_uart/ft23xx.cpp
+++ b/esphome/components/usb_uart/ft23xx.cpp
@@ -6,6 +6,7 @@
 #include "esphome/components/uart/uart_debugger.h"
 
 #include "esphome/components/bytebuffer/bytebuffer.h"
+#include <cinttypes>
 
 namespace esphome::usb_uart {
 
@@ -288,16 +289,16 @@ int USBUartTypeFT23XX::set_baudrate_(USBUartChannel *channel, uint32_t baudrate)
       ESP_LOGE(TAG, "Set baudrate failed, status=%s", esp_err_to_name(status.error_code));
       channel->initialised_.store(false);
     } else {
-      ESP_LOGD(TAG, "Baudrate %d set, setting line properties...", channel->baud_rate_);
+      ESP_LOGD(TAG, "Baudrate %" PRIu32 " set, setting line properties...", channel->baud_rate_);
       this->set_line_properties_(channel);
     }
   };
   if (baudrate == 0) {
     baudrate = channel->baud_rate_;
   }
-  uint16_t value, ftdi_index;
+  uint16_t value = 0, ftdi_index = 0;
   ftdi_convert_baudrate(baudrate, this->chip_type_, channel->index_, &value, &ftdi_index);
-  ESP_LOGD(TAG, "Baudrate: %d, value=0x%04X, ftdi_index=0x%04X", baudrate, value, ftdi_index);
+  ESP_LOGD(TAG, "Baudrate: %" PRIu32 ", value=0x%04X, ftdi_index=0x%04X", baudrate, value, ftdi_index);
   uint16_t usb_index = (ftdi_index & 0xFF00) | (channel->cdc_dev_.bulk_interface_number + 1);
   bool ok = this->control_transfer(USB_VENDOR_DEV | usb_host::USB_DIR_OUT, 0x03, value, usb_index, callback);
   if (!ok) {
diff --git a/esphome/components/usb_uart/pl2303.cpp b/esphome/components/usb_uart/pl2303.cpp
index 3685debef4c..134c51198df 100644
--- a/esphome/components/usb_uart/pl2303.cpp
+++ b/esphome/components/usb_uart/pl2303.cpp
@@ -3,6 +3,7 @@
 #include "usb_uart.h"
 #include "usb/usb_host.h"
 #include "esphome/core/log.h"
+#include <cinttypes>
 
 namespace esphome::usb_uart {
 
@@ -282,8 +283,8 @@ void USBUartTypePL2303::enable_channels() {
   // Data bits
   line_coding[6] = channel->get_data_bits();
 
-  ESP_LOGD(TAG, "PL2303: SET_LINE_REQUEST baud=%u stop=%u parity=%u data=%u", baud, line_coding[4], line_coding[5],
-           line_coding[6]);
+  ESP_LOGD(TAG, "PL2303: SET_LINE_REQUEST baud=%" PRIu32 " stop=%u parity=%u data=%u", baud, line_coding[4],
+           line_coding[5], line_coding[6]);
 
   std::vector<uint8_t> lc_vec(line_coding, line_coding + 7);
   uint16_t iface = channel->cdc_dev_.bulk_interface_number;