struct gpio_desc *gpiod_get(struct device *dev, const char *con_id, enum gpiod_flags flags) struct gpio_desc *gpiod_get_index(struct device *dev, const char *con_id, unsigned int idx, enum gpiod_flags flags) 1.
通过使用typedef结合结构体，例如声明名为GPIO_InitTypeDef的结构体类型名。同样，结合typedef与struct定义名为DEVICE_PROP的结构体类型名，实现类型别名的高效应用。
#include "bflb_gpio.h" //gpio头文件 struct bflb_device_s *pwm; //创建LHAL外设库结构体,名称为pwm void my_pwm_gpio_init() //编写一个选择pwm输出的gpio口初始化函数 { struct bflb_device_s *gpio; gpio = bflb_device_get_by_name("gpio"); bflb_gpio_init(gpio, GPIO_PIN_0, GPIO_...
在我们的I2C控制器代码中,i2c_detect函数中在最初始处有如下代码: 这就意味着在i2c检测和匹配过程中,如果class成员没有进行设置,缺省值将直接导致检测的失败而结束。 而在其它平台上并没有这个问题。 鉴于I2C驱动不由我们维护,不推荐修改i2c-core.c 【解决办法】 在I2C驱动中,通常定义的i2c_adapter 或 i2c_drive...
void My_i2c0_gpio_init() //初始化I2C的gpio引脚,选择IO_0作为SDA,IO_1作为SCL { struct bflb_device_s* gpio; gpio = bflb_device_get_by_name("gpio"); /* I2C0_SDA */ bflb_gpio_init(gpio, GPIO_PIN_0, GPIO_FUNC_I2C0 | GPIO_ALTERNATE | GPIO_PULLUP | GPIO_SMT_EN | GPIO_DRV...
解决办法一: make menuconfig,依次进入 Device Drivers GPIO Surport I2C GIPO Expanders 键盘按下y选中PCA95[357]X后,exit到上一次保存;再进入I2C GIPO Expanders选中终端控制器,一直exit保存 解决办法二: …
* variants, which GPIO pins act in what additional roles, and so * on. This shrinks the "Board Support Packages" (BSPs) and * minimizes board-specific #ifdefs in drivers. * @driver_data: Private pointer for driver specific info.
return dm_gpio_get_value(&cdev->ec_int); } int cros_ec_info(struct cros_ec_dev *dev, struct ec_response_mkbp_info *info) int cros_ec_info(struct udevice *dev, struct ec_response_mkbp_info *info) { if (ec_command(dev, EC_CMD_MKBP_INFO, 0, NULL, 0, info, sizeof(*info)...
[ 3.429743] 9pnet: Installing 9P2000 support [ 3.435439] Key type dns_resolver registered [ 3.440299] registered taskstats version 1 [ 3.443685] Loading compiled-in X.509 certificates [ 3.461041] input: gpio-keys as /devices/platform/gpio-keys/input/input0 [ 3.473163] ALSA device list: [ ...
/* GPIO Init structure definition */ typedef struct { u16 GPIO_Pin; GPIOSpeed_TypeDef GPIO_Speed; GPIOMode_TypeDef GPIO_Mode; }GPIO_InitTypeDef; 最终的效果是声明了一个名为GPIO_InitTypeDef的结构体类型名。 typedef struct _DEVICE_PROP { void (*Init)(void); /* Initialize the device ,成员列表...