L4Re Operating System Framework
Interface and Usage Documentation
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This interface has just two (main) functions. More...
Modules | |
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. | |
Functions | |
l4irq_t * | l4irq_request (int irqnum, void(*isr_handler)(void *), void *isr_data, int irq_thread_prio, unsigned mode) |
Attach asychronous ISR handler to IRQ. | |
long | l4irq_release (l4irq_t *irq) |
Release asynchronous ISR handler and free resources. | |
This interface has just two (main) functions.
l4irq_request to install a handler for an interrupt and l4irq_release to uninstall the handler again and release all resources associated with it.
long l4irq_release | ( | l4irq_t * | irq | ) |
Release asynchronous ISR handler and free resources.
irq | IRQ data structure |
l4irq_t * l4irq_request | ( | int | irqnum, |
void(*)(void *) | isr_handler, | ||
void * | isr_data, | ||
int | irq_thread_prio, | ||
unsigned | mode | ||
) |
Attach asychronous ISR handler to IRQ.
irqnum | IRQ number to request |
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, |