devm_request_threaded_irq怎么用 获取设备uniqueIdentifier :[UIDevice currentDevice].uniqueIdentifier;,但在ios5中,它已被废弃。 http://kensou.blog.51cto.com/3495587/655083 [[UIDevice currentDevice] systemName]; [[UIDevice currentDevice] systemVersion];//os version [[UIDevice currentDevice] uniqueIdentif...
key为mapping的URI pattern值,而value为ResourceHttpRequestHandler,这样就巧妙的把对静态资源的访问由HandlerMapping转到ResourceHttpRequestHandler处理并返回,所以就支持classpath目录,jar包内静态资源的访问.另外需要注意的一点是,不要对SimpleUrlHandlerMapping设置defaultHandler.因为对static uri的defaultHandler就是ResourceHt...
devm_request_threaded_irq() 下半部的函数: tasklet,workqueue,softirq 下半部分仍然在原子或中断上下文中运行! 不能传输数据(用户和内核空间); 分配内存要使用GFP_ATOMIC; 不能直接间接调用schedule(); tasklet #include <linux/interrupt.h> void tasklet_init(struct tasklet_struct *t, void (*func)(...
先看一个使用device resource management的例子(IRQ模块):1:/*include/linux/interrupt.h*/2:staticinlineint__must_check3: devm_request_irq(structdevice *dev, unsignedintirq, irq_handler_t handler,4: unsignedlongirqflags,constchar*devname,void*dev_id)5: {6:returndevm_request_threaded_irq(dev, ...
err =devm_request_threaded_irq(dev, rtc->alarm_irq,NULL, cpcap_rtc_alarm_irq, IRQF_TRIGGER_NONE,"rtc_alarm", rtc);if(err) { dev_err(dev,"Could not request alarm irq: %d\n", err);returnerr; } disable_irq(rtc->alarm_irq);/* Stock Android uses the 1 Hz interrupt for "secure...
irq, ret); @@ -541,21 +542,19 @@ static int wm831x_buckv_probe(struct platform_device *pdev) } irq = wm831x_irq(wm831x, platform_get_irq_byname(pdev, "HC")); - ret = request_threaded_irq(irq, NULL, wm831x_dcdc_oc_irq, ...
irq = wm831x_irq(wm831x, platform_get_irq_byname(pdev, "UV")); - ret = request_threaded_irq(irq, NULL, wm831x_ldo_uv_irq, - IRQF_TRIGGER_RISING, ldo->name, ldo); + ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, ...
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int ret = devm_request_threaded_irq(dev, irq, NULL, irq_handler, IRQF_TRIGGER_FALLING | IRQF_ONESHOT, "my_interrupt", NULL); if (ret) { dev_err(dev, "Unable to request IRQ: %d\n", irq); return ret; } ``` 在上面的代码示例中,我们首先通过 gpio_to_irq 将 GPIO 转换为中断号,并...
+ ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, + wm831x_isink_irq, + IRQF_TRIGGER_RISING, isink->name, + isink); if (ret != 0) { dev_err(&pdev->dev, "Failed to request ISINK IRQ %d: %d\n", irq, ret); ...