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...
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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)(...
Add missing support for the devm_request_threaded_irq in the rules of context, report and org modes. Misc: --- To be consistent with other scripts, change confidence level of the script to 'Moderate'. Change-Id: I3ad8fc93081be82512e6143e27c8936c988a98f1 Signed-off-by: Vaishali Thakkar...
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...
error = devm_request_threaded_irq(&pdev->dev, irq,NULL, retu_pwrbutton_irq,0,"retu-pwrbutton", idev);if(error)returnerror; error = input_register_device(idev);if(error)returnerror;return0; } 開發者ID:3null,項目名稱:linux,代碼行數:33,代碼來源:retu-pwrbutton.c ...
+ ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, + wm831x_ldo_uv_irq, + IRQF_TRIGGER_RISING, ldo->name, ldo); if (ret != 0) { dev_err(&pdev->dev, "Failed to request UV IRQ %d: %d\n", irq, ret); @@ -536,8 +536,6 @@ static int wm831x_aldo_remove(str...
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, ...
devm_request_threaded_irq handler传入NULL servlet在找页面时,走的是dispatcherServlet路线。找不到的时候会报404 加上这个默认的servlet时候,servlet在找不到的时候会去找静态的内容。 另外一篇文章介绍了访问静态文件的几种方法: 访问到静态的文件,如jpg,js,css...