From d836ea0107eb68752cf1570a4abd87a36b04449b Mon Sep 17 00:00:00 2001
From: diplfranzhoepfinger <mail@franzhoepfinger.de>
Date: Sun, 18 Aug 2024 20:28:04 +0200
Subject: [PATCH] Update uart_select_example_main.c

---
 .../uart/uart_select/main/uart_select_example_main.c           | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/examples/peripherals/uart/uart_select/main/uart_select_example_main.c b/examples/peripherals/uart/uart_select/main/uart_select_example_main.c
index 7364290a3c..af900ed47e 100644
--- a/examples/peripherals/uart/uart_select/main/uart_select_example_main.c
+++ b/examples/peripherals/uart/uart_select/main/uart_select_example_main.c
@@ -7,6 +7,7 @@
    CONDITIONS OF ANY KIND, either express or implied.
 */
 #include <stdio.h>
+#include <string.h>
 #include <sys/fcntl.h>
 #include <sys/errno.h>
 #include <sys/unistd.h>
@@ -63,7 +64,7 @@ static void uart_select_task(void *arg)
             s = select(fd + 1, &rfds, NULL, NULL, &tv);
 
             if (s < 0) {
-                ESP_LOGE(TAG, "Select failed: errno %d", errno);
+                ESP_LOGE(TAG, "Select failed: errno %d (%s)", errno, strerror(errno));
                 break;
             } else if (s == 0) {
                 ESP_LOGI(TAG, "Timeout has been reached and nothing has been received");