Interface for asynchronous ISR handlers with a given IRQ capability.

This group is just an enhanced version to l4irq_request() which takes a capability object instead of a plain number. More...

Collaboration diagram for Interface for asynchronous ISR handlers with a given IRQ capability.:

Functions
l4irq_t *	l4irq_request_cap (l4_cap_idx_t irqcap, void(*isr_handler)(void *), void *isr_data, int irq_thread_prio, unsigned mode)
	Attach asychronous ISR handler to IRQ.

Detailed Description

This group is just an enhanced version to l4irq_request() which takes a capability object instead of a plain number.

Function Documentation

l4irq_request_cap()

l4irq_t * l4irq_request_cap	(	l4_cap_idx_t	irqcap,
		void(*	isr_handler )(void *),
		void *	isr_data,
		int	irq_thread_prio,
		unsigned	mode )

Attach asychronous ISR handler to IRQ.

Parameters

irqcap	IRQ capability
isr_handler	Handler routine that is called when an interrupt triggers
isr_data	Pointer given as argument to isr_handler
irq_thread_prio	L4 thread priority of the ISR handler. Give -1 for same priority as creator.
mode	Interrupt type,

See also

L4_irq_mode

Returns

Pointer to l4irq_t structure, 0 on error