USB: added MSC Host Driver with VFS support

Closes https://github.com/espressif/esp-idf/issues/6401

tools/test_apps/peripherals/usb/CMakeLists.txt

@@ -2,9 +2,10 @@
 # CMakeLists in this exact order for cmake to work correctly
 cmake_minimum_required(VERSION 3.5)
 
-set(EXTRA_COMPONENT_DIRS $ENV{IDF_PATH}/examples/peripherals/usb/host/cdc/common)
+set(EXTRA_COMPONENT_DIRS $ENV{IDF_PATH}/examples/peripherals/usb/host/cdc/common
+                         $ENV{IDF_PATH}/examples/peripherals/usb/host/msc/components/)
 
 # Set the components to include the tests for.
-set(TEST_COMPONENTS "cdc_acm_host" CACHE STRING "List of components to test")
+set(TEST_COMPONENTS "cdc_acm_host" "msc" CACHE STRING "List of components to test")
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)
 project(usb_test_app)

tools/test_apps/peripherals/usb/README.md

@@ -1,14 +1,26 @@
 | Supported Targets | ESP32-S2 | ESP32-S3 |
 | ----------------- | -------- | -------- |
 
-# USB Host CDC-ACM driver test project
+# USB Host Class driver test project
+Main purpose of this application is to test the USB Host Class drivers.
+
+## CDC-ACM driver
 
-Main purpose of this application is to test the USB Host CDC-ACM driver.
 It tests basic functionality of the driver like open/close/read/write operations,
 advanced features like CDC control request, multi-threaded or multi-device access,
 as well as reaction to sudden disconnection and other error states.
 
-## Hardware Required
+### Hardware Required
 
 This test expects that TinyUSB dual CDC device with VID = 0x303A and PID = 0x4002
 is connected to the USB host.
+
+## MSC driver
+
+Basic functionality such as MSC device install/uninstall, file operatons, 
+raw access to MSC device and sudden disconnect is tested.
+
+### Hardware Required
+
+This test requires two ESP32-S2/S3 boards with a interconnected USB perpherals,
+one acting as host running MSC host driver and another MSC device driver (tinyusb).

tools/test_apps/peripherals/usb/main/usb_test_main.c

@@ -11,6 +11,6 @@
 void app_main(void)
 {
     UNITY_BEGIN();
-    unity_run_all_tests();
+    unity_run_menu();
     UNITY_END();
 }

tools/test_apps/peripherals/usb/sdkconfig.defaults

@@ -0,0 +1,4 @@
+CONFIG_TINYUSB=y
+CONFIG_TINYUSB_MSC_ENABLED=y
+CONFIG_ESP_INT_WDT=n
+CONFIG_ESP_TASK_WDT=n