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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

unsigned int irq

Interrupt line to free

void * 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@linutronix.de>

Author.

Ingo Molnar <mingo@elte.hu>

Author.

COPYRIGHT

June 2017 Kernel Hackers Manual 4.11