OSDev.org

Posted: **Tue Apr 02, 2013 11:19 am**

Hi all. I have a simple newbie question. I read this page and I found this:

7. .........
8. Wait for an IRQ or poll
9. ...........

What will this IRQ signalize and what does it mean 'poll'? Why are there two possibilities?

Posted: **Tue Apr 02, 2013 11:58 am**

Posted: **Tue Apr 02, 2013 6:47 pm**

The IRQ means that the drive will tell the PIC to tell the CPU to call your interrupt handler
Polling is repeatedly checking the status register

[SOLVED] ATA Interrupt for PIO