esp-idf/examples/common_components/env_caps/esp32c2/Kconfig.env_caps

config ENV_GPIO_RANGE_MIN
    int
    default 0

config ENV_GPIO_RANGE_MAX
    int
    default 18
    # GPIOs 19/20 are always used by UART in examples

config ENV_GPIO_IN_RANGE_MAX
    int
    default ENV_GPIO_RANGE_MAX

config ENV_GPIO_OUT_RANGE_MAX
    int
    default ENV_GPIO_RANGE_MAX
Examples: common source for GPIO range in Kconfigs defined 2022-04-20 09:02:26 +00:00			`config ENV_GPIO_RANGE_MIN`
			`int`
			`default 0`

			`config ENV_GPIO_RANGE_MAX`
			`int`
examples: update max GPIO range for C2 examples to exclude UART0 pins Closes https://github.com/espressif/esp-idf/issues/10174 2022-11-14 02:13:00 +00:00			`default 18`
			`# GPIOs 19/20 are always used by UART in examples`
Examples: common source for GPIO range in Kconfigs defined 2022-04-20 09:02:26 +00:00
			`config ENV_GPIO_IN_RANGE_MAX`
			`int`
			`default ENV_GPIO_RANGE_MAX`

			`config ENV_GPIO_OUT_RANGE_MAX`
			`int`
			`default ENV_GPIO_RANGE_MAX`