gpiod_line_request是 Linux GPIO (通用输入输出) 设备驱动中的一个函数,用于请求特定的 GPIO 引脚并设置其方向和行为。这个函数是基于gpiod库的,通常在使用现代 Linux 内核和用户空间库进行 GPIO 操作时会使用到。 函数原型 intgpiod_line_request(structgpiod_line*line,constchar*consumer,unsignedlongflags); ...
下列关于linux中函数gpio_request的描述不正确的是( ) 该函数原型是int gpio_request(unsigned gpio, const char *label) 在linux中,要想使用GPIO资源,需要先向内核申请资源 当该函数返回值为0时,表示GPIO资源申请成功 同一个GPIO,可以多次进行request 查看答案及解析 添加笔记 求解答(0) 邀请回答 收藏...
= 0) gpio_fatal(chip, "Request output failed"); for(;;) { gpiod_line_set_value(line, 1); printf("On\n"); sleep(1); gpiod_line_set_value(line, 0); printf("Off\n"); sleep(1); } gpiod_line_release(line); gpiod_chip_close(chip); return EXIT_SUCCESS; } vo...
您需要刷新EEPROM以设置引脚C5的功能,例如使用libftdi的ftdi_eeprom命令。首先,卸载ftdi_sio模块并保存...
Using thegpio-line-namesthe hardware vendor supply a BSP that is also pin-compatible at the software level. With the changes proposed in this merge request we can write the follow: // Note that libgpiod bank number is not necessary this will be abstracted by the gpiod_line_findGpioContro...
Woefie changed the title Arm support cxx bindings [libgpiod] Arm support cxx bindings on Jul 19 JackBoosY self-assigned this on Jul 19 JackBoosY added the category:port-feature label on Jul 19 github-actions bot previously approved these changes on Jul 19 View changes JackBoosY reque...
tests/periph/gpio_ll main.c 1 change: 1 addition & 0 deletions 1 cpu/atmega_common/Makefile.features Original file line numberDiff line numberDiff line change @@ -10,6 +10,7 @@ FEATURES_PROVIDED += periph_gpio periph_gpio_irq FEATURES_PROVIDED += periph_gpio_ll FEATURES_PROVIDED +=...
return gpio_ll_prepare_switch_dir_impl(mask); } static inline void gpio_ll_switch_dir_output(gpio_port_t port, uword_t pins) { GPIO_TypeDef *p = (GPIO_TypeDef *)port; unsigned irq_state = irq_disable(); p->MODER |= pins; irq_restore(irq_state); } static inline void gpio_ll_...