HANDLE_EDGE_IRQ(9)                  Public Functions Provided                  HANDLE_EDGE_IRQ(9)



NAME
       handle_edge_irq - edge type IRQ handler

SYNOPSIS
       void handle_edge_irq(struct irq_desc * desc);

ARGUMENTS
       desc
           the interrupt description structure for this irq

DESCRIPTION
       Interrupt occures on the falling and/or rising edge of a hardware signal. The occurrence
       is latched into the irq controller hardware and must be acked in order to be reenabled.
       After the ack another interrupt can happen on the same source even before the first one is
       handled by the associated event handler. If this happens it might be necessary to disable
       (mask) the interrupt depending on the controller hardware. This requires to reenable the
       interrupt inside of the loop which handles the interrupts which have arrived while the
       handler was running. If all pending interrupts are handled, the loop is left.

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

       Ingo Molnar <mingo AT elte.hu>
           Author.

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