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.TH "Z8530_RX" "9" "17 July 2003" "" ""

.SH NAME
z8530_rx \- Handle a PIO receive event
.SH SYNOPSIS
.sp
\fB
.sp
void z8530_rx  (struct z8530_channel * \fIc\fB);
\fR
.SH "ARGUMENTS"
.TP
\fB\fIc\fB\fR
Z8530 channel to process
.SH "DESCRIPTION"
.PP
Receive handler for receiving in PIO mode. This is much like the 
async one but not quite the same or as complex
.SH "NOTE"
.PP
Its intended that this handler can easily be separated from
the main code to run realtime. That'll be needed for some machines
(eg to ever clock 64kbits on a sparc ;)).
.PP
The RT_LOCK macros don't do anything now. Keep the code covered
by them as short as possible in all circumstances - clocks cost
baud. The interrupt handler is assumed to be atomic w.r.t. to
other code - this is true in the RT case too.
.PP
We only cover the sync cases for this. If you want 2Mbit async
do it yourself but consider medical assistance first. This non DMA 
synchronous mode is portable code. The DMA mode assumes PCI like 
ISA DMA
.PP
Called with the device lock held
.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 2.5.75.