From 3905220c123526aac0807e3eea083f2c5abc1a6d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?King=20K=C3=A9vin?= <kingkevin@cuvoodoo.info>
Date: Mon, 18 Jul 2022 14:36:50 +0200
Subject: [PATCH] main: init USB CDC ACM

---
 main/main.c        | 23 +++++++++++++++++++++++
 sdkconfig.defaults |  4 ++++
 2 files changed, 27 insertions(+)
 create mode 100644 sdkconfig.defaults

diff --git a/main/main.c b/main/main.c
index 80d1c85..a2a37df 100644
--- a/main/main.c
+++ b/main/main.c
@@ -2,8 +2,31 @@
  * Copyright 2022 King Kévin <kingkevin@cuvoodoo.info>
  */
 #include <stdio.h>
+#include <stdlib.h>
+#include <sys/reent.h>
+#include "esp_log.h"
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#include "tinyusb.h"
+#include "tusb_cdc_acm.h"
+#include "tusb_console.h"
+#include "sdkconfig.h"
+
+static const char *TAG = "main";
 
 void app_main(void)
 {
+	// setup USB CDC ACM for printing
+	ESP_LOGI(TAG, "USB initialization");
+	tinyusb_config_t tusb_cfg = { 0 }; // the configuration uses default values
+	ESP_ERROR_CHECK( tinyusb_driver_install(&tusb_cfg) ); // configure USB
+	tinyusb_config_cdcacm_t amc_cfg = { 0 }; // the configuration uses default values
+	ESP_ERROR_CHECK( tusb_cdc_acm_init(&amc_cfg) ); // configure CDC ACM
+	esp_tusb_init_console(TINYUSB_CDC_ACM_0); // log to USB
+	ESP_LOGI(TAG, "USB initialized");
 
+	ESP_LOGI(TAG, "application ready");
+	while (1) {
+		vTaskDelay(1000 / portTICK_PERIOD_MS);
+	}
 }
diff --git a/sdkconfig.defaults b/sdkconfig.defaults
new file mode 100644
index 0000000..60516d0
--- /dev/null
+++ b/sdkconfig.defaults
@@ -0,0 +1,4 @@
+CONFIG_IDF_TARGET="esp32s2"
+CONFIG_IDF_TARGET_ESP32S2=y
+CONFIG_TINYUSB=y
+CONFIG_TINYUSB_CDC_ENABLED=y