(4)注册gpio-keys在sys文件系统下的访问接口属性,gpio-keys设备在sys文件系统路径为:/sys/devices/gpio_keys_test.32,其中gpio_keys_test为DTS中设备设备节点名称。 (5)注册input设备。 5. 设备资源解析 gpio_keys_get_devtree_pdata函数完成将DTS节点的设备属性翻译成gpio_keys_platform_data结构,具体执行流程如...
IOCTL_GPIO_CONTROLLER_SPECIFIC_FUNCTION I/O 控制代码使常规用途 I/O(GPIO) 控制器的客户端能够请求特定于控制器的设备控制作。
int GPIO_SetValue(int gpioFd, GPIO_Value_Type value); ParametersgpioFd The file descriptor for the GPIO. value The GPIO_Value value to set - GPIO_Value_High or GPIO_Value_Low.ErrorsReturns -1 if an error is encountered and sets errno to the error value.EINVAL: the value is not a GP...
@@ -494,8 +494,8 @@ static const char * const gpio_function[GPIOF_COUNT] = { "func", }; int get_function(struct udevice *dev, int offset, bool skip_unused, const char **namep) static int get_function(struct udevice *dev, int offset, bool skip_unused, const char **namep) ...
CLIENT_ControllerSpecificFunction事件回调函数执行特定于特定常规用途 I/O (GPIO) 控制器的作。 语法 C++ GPIO_CLIENT_CONTROLLER_SPECIFIC_FUNCTION GpioClientControllerSpecificFunction;NTSTATUSGpioClientControllerSpecificFunction( [in] PVOID Context, [in, out] PGPIO_CLIENT_CONTROLLER_SPECIFIC_FUNCTION_PARAM...
1. i.MX8 ADC_IN0 pin can't config to GPIO function, here is my dts pin config: SC_P_ADC_IN0_LSIO_GPIO3_IO18 0x1E000000 2. when as output function, pin value always 0; 3. when as input function, gpio value always 0 no matter what level at the pin connecte...
gpio: mxs: add name_to_gpio() function Browse files Override the default name_to_gpio() function with one that accepts strings of the form bank:pin. If a colon is present in the provided name, it behaves like the default version. This lets the "gpio" command work with sane names ...
The GPIO_CLX_RegisterClient method registers a general-purpose I/O (GPIO) controller driver as a client of the GPIO framework extension (GpioClx).
gpio_partialremap1_tim3特指对TIM3定时器进行部分重映射的功能之一,它允许将TIM3的某些功能(如捕获/比较输出)映射到不同的GPIO引脚集合上。 2. 详述 tim3 partial1 alternate function mapping 的含义 tim3 partial1 alternate function mapping 指的是TIM3定时器部分1的备用功能映射。在STM32等微控制器中,定时...
The identifier for this bank of GPIO pins. If N is the number of banks in the GPIO controller,BankIdis an integer in the range 0 to N–1. Return value None Remarks This method releases the interrupt lock that the caller acquired in a previous call to theGPIO_CLX_AcquireInterru...