GPIO_SET_PIN_CONFIG_IOCTL I/O 控件 项目 2023/08/09 标头:#include <linux/gpio.h> 根据gpiopin_request结构中指定的配置,设置一个或多个 GPIO 引脚的驱动器强度。 C #defineGPIO_SET_PIN_CONFIG_IOCTL _IOWR(0xB4, 0x05, struct gpiopin_request) ...
I have a condition where after filling the required parameters to a gpio_config_t variable, specifically stating that I want a PULLUP on an Output pin, AND AND, having an external pull up resistor 1K (for good measure in case the pin does not have a pull-up), when the call is made...
We connect one gpio to led and wish to config the gpio as led. Is it possible? I try to config like this: &i2c3 { clock-frequency = <400000>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_i2c3>; status = "okay" pcal6408: pcal6408@20 { c...
Hello @sophiehu The orignal pcaxxx driver can only support common gpio control, it can't support embed led driver. You can use libgpio to control in/out, high/low in userspace. https://stackoverflow.com/questions/66106568/how-to-programmatically-use...
Solved: Hi NXP, We have a custom board with i2c io-expansion PCAL6408. There are 8 gpios. I config it in dts and all the gpios work well. &i2c3 {