FREE_IRQ(9) Hardware Interfaces FREE_IRQ(9)
NAME
free_irq - free an interrupt allocated with request_irq
SYNOPSIS
void free_irq(unsigned int irq, void * dev_id);
ARGUMENTS
irq
Interrupt line to free
dev_id
Device identity to free
DESCRIPTION
Remove an interrupt handler. The handler is removed and if the interrupt line is no longer in use by any driver it is disabled. On a shared
IRQ the caller must ensure the interrupt is disabled on the card it drives before calling this function. The function does not return until
any executing interrupts for this IRQ have completed.
This function must not be called from interrupt context.
COPYRIGHT
Kernel Hackers Manual 2.6. July 2010 FREE_IRQ(9)
