Contributor
ContributorHi，
My bad,
I mean I'm trying to use <linux/interrupt.h> but it seems can't call in user space code. I supposed to be done in Linux Kernel module.
So I want to use the kernel source code to compile my kernel module.
What I need for the compile is the kernel source code supposed located on /usr/src/$(uname -r).
Yet it is empty, so I download the Kernel source code and make it as zImage as my embedded system did.
What I want to know is that is there an easier way to compile the KML(I mean kernel module)?
Or can <linux/interrupt.h> can be used on user space code?
reguards.
ContributorAnd what I really confused is that I wrote my own IP device on FPGA, in order to use it in kernel module(basicly it only sends out the interrupt signal to irq_0 every 50 us), what should I do?
Do I need to update the Device Tree and refresh the u-boot?
Do I need to write my own driver for my timer IP?
What should I treat this IP, is it a device_platform?
How to communicate with my user space code. make a char device? Use /proc? Or is there a easy way that can achieve the goal: To tell the userspace it is the time to go.
Sorry for so many questions.
reguards.
