" */desc_set_label(desc, label ? :"?"); status =0;/* 没有"gpio-ranges"属性,无作用 */if(chip->request) {/* mxc_gpio_request */status = chip->request(chip, gpio_chip_hwgpio(desc)); }/*获得gpio方向*/if(chip->get_direction) { gpiod_get_direction(desc); }returnstatus; } 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
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/include/gpiod.h at master
调用request_irq申请中断,如果失败要调用free_irq释放,该函数中gpio_info-firefly_irq是要申请的硬件中断号,firefly_gpio_irq是中断函数,gpio_info->firefly_irq_mode是中断处理的属性,”firefly-gpio”是设备驱动程序名称,gpio_info是该设备的device结构,在注册共享中断时会用到。
config.consumer = "blink"; config.request_type = GPIOD_LINE_REQUEST_DIRECTION_OUTPUT; // 输出模式 /* 配置引脚 */ reg = gpiod_line_request(led, &config, 0); if (reg) { fprintf(stderr, "led request error.\n"); return -1; } while (1) { /* 设置引脚电平 */ gpiod_line_set_...
() power_config.consumer = "motor_movement" power_config.request_type = gpiod.line_request.DIRECTION_OUTPUT power.request(power_config) def run(): delay = 1.0 try: #power.set_value(0) while True: power.set_value(1) time.sleep(delay) power.set_value(0) time.sleep(delay) finally: ...
sudo g_gpiod/build/g_gpiod Password: Request output failed gpiod.h states for the failing function the following: /** * @brief Reserve a single line, set the direction to output. * @param line GPIO line object. * @param consumer Name of the consumer. * @param default...
First, on lines 6 and 9, we set the “consumer” variable of each instance of the line_request class in gpiod to a meaningful string (“MAB project” in this case). This allows us to identify processes that are using a particular GPIO. Second, on line 11, we set the active state ...
CONFIG_NO_HZ is not set CONFIG_HIGH_RES_TIMERS=y # end of Timers subsystem CONFIG_PREEMPT_NONE=y # CONFIG_PREEMPT_VOLUNTARY is not set # CONFIG_PREEMPT is not set # # CPU/Task time and stats accounting # CONFIG_TICK_CPU_ACCOUNTING=y # CONFIG_BSD_PROCESS_ACCT is not set # CONFIG_...
#include <linux/pinctrl/consumer.h> struct device { //... #ifdef CONFIG_PINCTRL struct dev_pin_info *pins; #endif //... }; struct dev_pin_info { struct pinctrl *p; struct pinctrl_state *default_state; #ifdef CONFIG_PM struct pinctrl_state *sleep_state; ...