probe_irq_off(9)
NAME
probe_irq_off - end an interrupt autodetect
SYNOPSIS
int probe_irq_off (unsigned long val);
ARGUMENTS
val mask of potential interrupts (unused)
DESCRIPTION
Scans the unused interrupt lines and returns the line
which appears to have triggered the interrupt. If no
interrupt was found then zero is returned. If more than
one interrupt is found then minus the first candidate is
returned to indicate their is doubt.
The interrupt probe logic state is returned to its previ
ous value.
BUGS
- When used in a module (which arguably shouldnt happen)
- nothing prevents two IRQ probe callers from overlapping.
The results of this are non-optimal.