FREE_IRQ(9)                         Public Functions Provided                         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.

AUTHORS
       Thomas Gleixner <tglx AT linutronix.de>
           Author.

       Ingo Molnar <mingo AT elte.hu>
           Author.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                               FREE_IRQ(9)