I am a beginner with linux interrupt function, I try to run the program below in Ubuntu 20, but there is always red wave line with the "#include <linux/interrupt.h>", I search the file...

I write a device driver to receive data from the hardware. The logic is when device data is ready, it will send an irq to the Linux host. The communication interface is SPI. However, the SPI controlle...

I was trying to handle IRQs but it didn't work, do I need to fill all the exception entries before doing any IRQs and remapping the PIC. can anyone help me? Thanks.