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.TH "PROBE_IRQ_MASK" "" "06 October 2005" "" ""

.SH NAME
probe_irq_mask \- scan a bitmap of interrupt lines
.SH SYNOPSIS
"SYNOPSIS"
.sp
\fB
.sp
unsigned int probe_irq_mask  (unsigned long \fIval\fB);
\fR
.SH "ARGUMENTS"
.TP
\fB\fIval\fB\fR
mask of interrupts to consider
.SH "DESCRIPTION"
.PP
Scan the ISA bus interrupt lines and return a bitmap of
active interrupts. The interrupt probe logic state is then
returned to its previous value.
.SH "NOTE"
.PP
we need to scan all the irq's even though we will
only return ISA irq numbers - just so that we reset them
all to a known state.