zephyr/drivers/serial/Kconfig.esp32

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# SPDX-License-Identifier: Apache-2.0
config UART_ESP32
bool "ESP32 UART driver"
default y
depends on DT_HAS_ESPRESSIF_ESP32_UART_ENABLED
select SERIAL_HAS_DRIVER
select SERIAL_SUPPORT_INTERRUPT
select SERIAL_SUPPORT_ASYNC if (SOC_SERIES_ESP32C3 || SOC_SERIES_ESP32C6 || SOC_SERIES_ESP32S3)
select GPIO_ESP32
help
Enable the ESP32 UART.
config SERIAL_ESP32_USB
bool "ESP32 built-in USB serial driver"
default y
depends on DT_HAS_ESPRESSIF_ESP32_USB_SERIAL_ENABLED
select SERIAL_HAS_DRIVER
select SERIAL_SUPPORT_INTERRUPT
help
Enable the built-in USB serial interface present in some Espressif
MCUs like ESP32-Cx.
This driver uses the peripheral called USB Serial/JTAG Controller
(USB_SERIAL_JTAG), which acts as a CDC-ACM interface towards the
USB host. The USB stack is built into the chip and accessed
by the firmware through a simplified API similar to a "normal"
UART peripheral.
config UART_ESP32_TX_FIFO_THRESH
hex "ESP32 UART TX FIFO Threshold"
depends on UART_ESP32
default 0x1
range 1 127
help
Configure the TX FIFO threshold for ESP32 UART driver.
config UART_ESP32_RX_FIFO_THRESH
hex "ESP32 UART RX FIFO Threshold"
depends on UART_ESP32
default 0x16
range 1 127
help
Configure the RX FIFO threshold for ESP32 UART driver.