how to set up IRQs and the PIC

[uruseiyatsura]

Hello guys,
I just started OSdev and I'm building a very simple OS, but I cannot set up the PIC and the IRQ in protected mode.
I read the osdev wiki and I found something about the PIC initialisation, but nothing about the IRQ.
I admit I am pretty a noob, but I don't found any code about the IRQ init.
Could someone gimme a hand please?
Thank you.

[sounds]

For starters, can you disable all interrupts in the PIC? That will prevent any IRQs from firing until you have set up interrupt handler code. https://wiki.osdev.org/8259_PIC#Disabling

Please share any code you have, and we can give you more detailed info.

[Octocontrabass]

IRQs are Interrupt ReQuests. Initialization is different for every device that can generate IRQs. So, which device do you want to initialize to generate IRQs?

[Klakap]

IRQ are set up through IDT table. you simply build IDT table in memory, and point to it by assembly command lidt. some info about this is on https://wiki.osdev.org/Interrupts_tutorial or https://wiki.osdev.org/Interrupt_Descriptor_Table.

[Clover5411]

I don't mean to be rude; but to get proper help, you need to give a more detailed description than just saying you couldn't get PIC and IRQ working.

[sounds]

KineticManiac, we're attempting to be welcoming here, check uruseiyatsura's post history for the context.

[iansjack]

KineticManiac, we're attempting to be welcoming here, check uruseiyatsura's post history for the context.

What’s your point?

It was an eminently sensible comment.

[lochyj]

Here is a reasonably good tutorial that you may find useful:
http://www.osdever.net/bkerndev/Docs/isrs.htm

Edit:
Forgot to add this:
https://wiki.osdev.org/Bran%27s_Kernel_ ... Known_Bugs