In the above example, &gpio1 uses 2 cells to specify a gpio. The first cell is a local offset to the GPIO line and the second cell represent consumer flags, such as if the consumer desire the line to be active low (inverted) or open drain. This is the recommended practice. 2、根据...
根据第二个Python示例,要接收事件,必须请求行的类型是LINE_REQ_EV_类型之一,例如LINE_REQ_EV_BOTH_...
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. 2. 3. 4. 5. 6. 或者也可以使用如下两个函数获取可用设备: struct ...
gc5025->det_pin = of_get_named_gpio_flags(node, "det-gpios", 0, &det_flags);camera_det_irq = gpio_to_irq(gc5025->det_pin);gc5025->det_value = gpio_get_value(gc5025->det_pin);/*判断注册终端*/if(camera_det_irq){if (gpio_request(gc5025->det_pin, "camera-irq-gpio")) {...
gpio_desc *desc)void gpiod_set_raw_value_cansleep(struct gpio_desc *desc, int value)int gpiod_direction_output_raw(struct gpio_desc *desc, int value)raw-value 的意思就是不在乎 DTS里面的ACTIVE我set高电平,就是高电平 逻辑关系汇总如下:Function (example) active-low property physical line gpio...
line tools optionally depend on libedit for the interactive feature. To build the project (including command-line utilities) run: ./autogen.sh --enable-tools=yes --prefix=<install path> make make install The autogen script will execute ./configure and pass all the command-line arguments to ...
config_out.consumer = “MAB project” 6 config_out.request_type = gpiod.line_request.DIRECTION_OUTPUT 7 8 config_in = gpiod.line_request() 9 config_in.consumer = “MAB project” 10 config_in.request_type = gpiod.line_request.DIRECTION_INPUT 11 config_in.flags = gpiod.line_request....
CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_GENERIC_BUG=y CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_CSUM=y CONFIG_GENERIC_HWEIGHT=y CONFIG_FIX_EARLYCON_MEM=y CONFIG_PGTABLE_LEVELS=3 CONFIG_SUNXI_SOC_NAME="" # # SoC selection # # CONFIG_SOC_SIFIVE is...
gpioset - Set values of specified GPIO lines, and potentially keep the lines exported and wait until timeout, user input or signal.gpiofind - Find the GPIO chip name and line offset given the line name.gpiomon - Wait for events on GPIO lines, specifying which events to watch, how many...
ulongtimestamp;/// estimate of time of status change occurrence, in nanoseconds and GPIOLINE_CHANGED_CONFIG uintevent_type;/// one of GPIOLINE_CHANGED_REQUESTED, GPIOLINE_CHANGED_RELEASED uint[5] padding;/*for future use*/ } enumGPIOHANDLE_REQUEST_INPUT= (1<<0);/// Linerequest flags ...