Interrupt Requests (IRQs).

This is the list of interrupt requests. More...

Macros
#define	IRQ_TIMER   0
	System timer.
#define	IRQ_KEYBOARD   1
	Keyboard controller.
#define	IRQ_TO_SLAVE_PIC   2
	cascaded signals from IRQs 8–15 (any devices configured to use IRQ 2 will actually be using IRQ 9)
#define	IRQ_COM2_4   3
	Serial port controller for serial port 2 (and 4).
#define	IRQ_COM1_3   4
	Serial port controller for serial port 1 (and 3).
#define	IRQ_LPT2   5
	Parallel port 2 and 3 (or sound card).
#define	IRQ_FLOPPY   6
	Floppy disk controller.
#define	IRQ_LPT1   7
	Parallel port 1.
#define	IRQ_REAL_TIME_CLOCK   8
	Real-time clock (RTC).
#define	IRQ_AVAILABLE_1   9
	Advanced Configuration and Power Interface (ACPI) system control interrupt on Intel chipsets.[1] Other chipset manufacturers might use another interrupt for this purpose, or make it available for the use of peripherals (any devices configured to use IRQ 2 will actually be using IRQ 9)
#define	IRQ_AVAILABLE_2   10
	The Interrupt is left open for the use of peripherals (open interrupt/available, SCSI or NIC).
#define	IRQ_AVAILABLE_3   11
	The Interrupt is left open for the use of peripherals (open interrupt/available, SCSI or NIC).
#define	IRQ_MOUSE   12
	Mouse on PS/2 connector.
#define	IRQ_MATH_CPU   13
	CPU co-processor or integrated floating point unit or inter-processor interrupt (use depends on OS).
#define	IRQ_FIRST_HD   14
	Primary ATA channel (ATA interface usually serves hard disk drives and CD drives).
#define	IRQ_SECOND_HD   15
	Secondary ATA channel.

Detailed Description

This is the list of interrupt requests.