centos man page for handle_edge_irq

Query: handle_edge_irq

OS: centos

Section: 9

Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar

HANDLE_EDGE_IRQ(9)					     Public Functions Provided						HANDLE_EDGE_IRQ(9)

NAME
handle_edge_irq - edge type IRQ handler
SYNOPSIS
void handle_edge_irq(unsigned int irq, struct irq_desc * desc);
ARGUMENTS
irq the interrupt number 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@linutronix.de> Author. Ingo Molnar <mingo@elte.hu> Author.
COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 HANDLE_EDGE_IRQ(9)
Related Man Pages
struct_irq_chip_generic(9) - centos
request_irq(9) - suse
struct_irq_desc(9) - suse
ddi_intr_hilevel(9f) - centos
ddi_intr_hilevel(9f) - minix
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