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.TH "Z8530_INTERRUPT" "9" "17 July 2003" "" ""

.SH NAME
z8530_interrupt \- Handle an interrupt from a Z8530
.SH SYNOPSIS
.sp
\fB
.sp
irqreturn_t z8530_interrupt  (int \fIirq\fB, void * \fIdev_id\fB, struct pt_regs * \fIregs\fB);
\fR
.SH "ARGUMENTS"
.TP
\fB\fIirq\fB\fR
Interrupt number
.TP
\fB\fIdev_id\fB\fR
The Z8530 device that is interrupting.
.TP
\fB\fIregs\fB\fR
unused
.SH "DESCRIPTION"
.PP
A Z85[2]30 device has stuck its hand in the air for attention.
We scan both the channels on the chip for events and then call
the channel specific call backs for each channel that has events.
We have to use callback functions because the two channels can be
in different modes.
.PP
Locking is done for the handlers. Note that locking is done
at the chip level (the 5uS delay issue is per chip not per
channel). c->lock for both channels points to dev->lock
.SH "ABOUT THIS DOCUMENT"
.PP
This documentation is free software; you can redistribute
it and/or modify it under the terms of the GNU General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later
version.
.PP
This program is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied
warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
.PP
You should have received a copy of the GNU General Public
License along with this program; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
MA 02111-1307 USA
.PP
For more details see the file COPYING in the source
distribution of Linux.
.PP
If you have comments on the formatting of this manpage, then please contact
Michael Still (mikal@stillhq.com).
.PP
This documentation was generated with kernel version 2.5.73.