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Fix for GPIO0/2/4/5 not being able to be used as inputs (GIT8266O-649) #1071

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Fix for GPIO0/2/4/5 not being able to be used as inputs (GIT8266O-649) #1071

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4 changes: 2 additions & 2 deletions components/esp8266/driver/gpio.c
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Original file line number Diff line number Diff line change
Expand Up @@ -334,8 +334,8 @@ esp_err_t gpio_config(const gpio_config_t *gpio_cfg)
// It should be noted that GPIO0, 2, 4, and 5 need to set the func register to 0,
// and the other GPIO needs to be set to 3 so that IO can be GPIO function.
if ((0x1 << io_num) & (GPIO_Pin_0 | GPIO_Pin_2 | GPIO_Pin_4 | GPIO_Pin_5)) {
pin_reg.rtc_pin.func_low_bit = 0;
pin_reg.rtc_pin.func_high_bit = 0;
pin_reg.func_low_bit = 0;
pin_reg.func_high_bit = 0;
} else {
pin_reg.func_low_bit = 3;
pin_reg.func_high_bit = 0;
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