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在 request_irq() 中假设我与两个处理程序函数共享一个 irq no,那么谁来决定哪个处理程序应该首先执行,哪个应该其次?我们是否可以更改应该首先执行的处理程序的优先级?
SA_SHIRQ 已耗尽多年。使用 IRQF_SHARED。你可以检查内核代码interrupt.h