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); ...
= 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...
if (gpioline == NULL) goto error2; printf("gpioline open is ok\n"); ret = gpiod_line_request_output(gpioline, "gpio", 0); if (ret != 0) goto error2; printf("request output is ok\n"); for (int i = 0; i < 5; i++) { ret = gpiod_line_set_value(gpioline, 1); ...
This is a mirror of the original repository over at kernel.org. This github page is for discussions and issue reporting only. PRs can be discussed here but the patches need to go through the linux-gpio mailing list. - libgpiod/tools/gpioset.c at eb690e46
include Makefile.am gpiod.h lib man sphinx tests tools .gitignore .readthedocs.yaml CONTRIBUTING.md COPYING Doxyfile.in Makefile.am NEWS README TODO autogen.sh configure.ac Latest commit Cannot retrieve latest commit at this time. History ...
printk("of get name gpio is error \n"); return -EIO; } gpio_reguest(gpiono[i],NULL); gpio_direction_output(gpiono[i],1); } return 0; } static void __exit demo_exit(void) { for (i=0;i<3;i++) { gpio_direction_output(gpiono[i],0); ...
import gpiod, time # pins POWER = 9 chip=gpiod.chip('gpiochip0') power=chip.get_line(POWER) power_config = gpiod.line_request() power_config.consumer = "motor_movement" power_config.request_type = gpiod.line_request.DIRECTION_OUTPUT power.request(power_config) def run(): delay = 1....
gpiod_chip_get_line(gpiochip0, PH5); if (!led) { gpiod_chip_close(gpiochip0); return -1; } /* 配置引脚 输出模式 name为“bilik” 初始电平为low*/ req = gpiod_line_request_output(led, "blink", 0); if (req) { fprintf(stderr, "led request error.\n"); return -1; } ...
collect2: error: ld returned 1 exit status The strange part is that I can hover over the offending functions and see the tool-tip help: int gpiod_ctxless_find_line(const char *name, char *chipname, size_t chipname_size, unsigned int *offset) ...