NAME
request_RTirq - install an interrupt handler
WARNING
This is RTL v1.x compatibility function. Please do not use
it for new programs.
SYNOPSIS
#define MODULE
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/version.h>
#include <linux/errno.h>
#include <linux/rtf.h>
#include <asm/rt_irq.h>
int request_RTirq(unsigned int irq, void (*han
dler)(void));
DESCRIPTION
request_RTirq installs handler as an interrupt service
routine for IRQ level irq. handler is then invoked when
ever interrupt number irq occurs. The interrupt service
routine can be uninstalled using free_RTirq.
RETURN VALUE
On success, 0 is returned. On failure, a negative value
is returned as described below.
ERRORS
-EINVAL
irq is not a valid IRQ number, or handler is NULL.
-EBUSY irq already has a handler. You must first call
free_RTirq to make the IRQ available.
SEE ALSO
free_RTirq(3)
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