I am writing a simple kernel module, which could register an interrupt and handle it. However, when I try to register interrupt by calling the request_irq function, it returns error code -22 :I am writing a simple kernel module, which coul
I am writing a simple kernel module, which could register an interrupt and handle it. However, when I try to register interrupt by calling the request_irq function, it returns error code -22 :I am writing a simple kernel module, which coul