19c564b6cSJohn Hay.\" Copyright (c) 2002 John Hay. 29c564b6cSJohn Hay.\" All rights reserved. 39c564b6cSJohn Hay.\" 49c564b6cSJohn Hay.\" Redistribution and use in source and binary forms, with or without 59c564b6cSJohn Hay.\" modification, are permitted provided that the following conditions 69c564b6cSJohn Hay.\" are met: 79c564b6cSJohn Hay.\" 1. Redistributions of source code must retain the above copyright 89c564b6cSJohn Hay.\" notice, this list of conditions and the following disclaimer. 99c564b6cSJohn Hay.\" 2. Redistributions in binary form must reproduce the above copyright 109c564b6cSJohn Hay.\" notice, this list of conditions and the following disclaimer in the 119c564b6cSJohn Hay.\" documentation and/or other materials provided with the distribution. 129c564b6cSJohn Hay.\" 139c564b6cSJohn Hay.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 149c564b6cSJohn Hay.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 159c564b6cSJohn Hay.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 169c564b6cSJohn Hay.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 179c564b6cSJohn Hay.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 189c564b6cSJohn Hay.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 199c564b6cSJohn Hay.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 209c564b6cSJohn Hay.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 219c564b6cSJohn Hay.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 229c564b6cSJohn Hay.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 239c564b6cSJohn Hay.\" SUCH DAMAGE. 249c564b6cSJohn Hay.\" 259c564b6cSJohn Hay.\" $FreeBSD$ 269c564b6cSJohn Hay.\" 279c564b6cSJohn Hay.Dd February 7, 2002 289c564b6cSJohn Hay.Dt PUC 4 299c564b6cSJohn Hay.Os 309c564b6cSJohn Hay.Sh NAME 319c564b6cSJohn Hay.Nm puc 3221bb400dSRuslan Ermilov.Nd PCI 3321bb400dSRuslan Ermilov.Dq Universal 3421bb400dSRuslan ErmilovCommunications driver 359c564b6cSJohn Hay.Sh SYNOPSIS 3621bb400dSRuslan Ermilov.Cd "device pci" 3721bb400dSRuslan Ermilov.Cd "device puc" 3821bb400dSRuslan Ermilov.Cd "device sio" 39a3732274SDoug Ambrisko.Cd "device ppc" 4021bb400dSRuslan Ermilov.Cd "options PUC_FASTINTR" 419c564b6cSJohn Hay.Sh DESCRIPTION 42a3732274SDoug AmbriskoThis driver acts as a shim to connect PCI serial and parallel ports to the 439c564b6cSJohn Hay.Xr sio 4 44a3732274SDoug Ambriskoand 45a3732274SDoug Ambrisko.Xr ppc 4 469c564b6cSJohn Haydriver. 479c564b6cSJohn Hay.Pp 489c564b6cSJohn HayThe list of supported devices is in 4921bb400dSRuslan Ermilov.Pa sys/dev/puc/pucdata.c . 509c564b6cSJohn HaySupport for new cards should be added there. 519c564b6cSJohn Hay.Pp 5221bb400dSRuslan ErmilovIf the 5321bb400dSRuslan Ermilov.Dv PUC_FASTINTR 5421bb400dSRuslan Ermilovoption is used, the driver will try to use fast interrupts. 559c564b6cSJohn HayThis should lower the interrupt latency and should be used if the 569c564b6cSJohn Hay.Xr sio 4 579c564b6cSJohn Haydriver reports 5821bb400dSRuslan Ermilov.Sy "silo overflow" 599c564b6cSJohn Hayerrors. 609c564b6cSJohn HayIt cannot be used if the interrupt is shared. 619c564b6cSJohn Hay.Sh SEE ALSO 629c564b6cSJohn Hay.Xr sio 4 63a3732274SDoug Ambrisko.Xr ppc 4 649c564b6cSJohn Hay.Sh HISTORY 659c564b6cSJohn HayThis driver took the idea from the 669c564b6cSJohn Hay.Nx 679c564b6cSJohn Hay.Xr puc 4 6821bb400dSRuslan Ermilovdriver and still uses the same structure to describe cards, to ease exchanging 699c564b6cSJohn Haycard info. 709c564b6cSJohn Hay.Sh BUGS 719c564b6cSJohn HayOnly serial ports are supported through the 729c564b6cSJohn Hay.Xr sio 4 739c564b6cSJohn Haydriver at the moment. 74