Chapter 2. API Reference
UART_RXD_GPIO3_DIRECT_CHANNEL
UART_CTS_GPIO19_DIRECT_CHANNEL
UART_RTS_GPIO22_DIRECT_CHANNEL
UART_GPIO10_DIRECT_CHANNEL
UART_NUM_1_TXD_DIRECT_GPIO_NUM
UART_GPIO9_DIRECT_CHANNEL
UART_NUM_1_RXD_DIRECT_GPIO_NUM
UART_GPIO6_DIRECT_CHANNEL
UART_NUM_1_CTS_DIRECT_GPIO_NUM
UART_GPIO11_DIRECT_CHANNEL
UART_NUM_1_RTS_DIRECT_GPIO_NUM
UART_TXD_GPIO10_DIRECT_CHANNEL
UART_RXD_GPIO9_DIRECT_CHANNEL
UART_CTS_GPIO6_DIRECT_CHANNEL
UART_RTS_GPIO11_DIRECT_CHANNEL
UART_GPIO17_DIRECT_CHANNEL
UART_NUM_2_TXD_DIRECT_GPIO_NUM
UART_GPIO16_DIRECT_CHANNEL
UART_NUM_2_RXD_DIRECT_GPIO_NUM
UART_GPIO8_DIRECT_CHANNEL
UART_NUM_2_CTS_DIRECT_GPIO_NUM
UART_GPIO7_DIRECT_CHANNEL
UART_NUM_2_RTS_DIRECT_GPIO_NUM
UART_TXD_GPIO17_DIRECT_CHANNEL
UART_RXD_GPIO16_DIRECT_CHANNEL
UART_CTS_GPIO8_DIRECT_CHANNEL
UART_RTS_GPIO7_DIRECT_CHANNEL
2.2.24 USB Device Driver
Overview
The driver allows users to use ESP32-S2 chips to develop USB devices on top the TinyUSB stack. TinyUSB is
integrating with ESP-IDF to provide USB features of the framework. Using this driver the chip works as a composite
device supporting to represent several USB devices simultaneously. Currently, only the communications device class
(CDC) type of the device with the ACM (Abstract Control Model) subclass is supported.
Features
• Configuration of device and string USB descriptors
• USB Serial Device (CDC-ACM)
• Input and output through USB Serial Device
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