Man page or keyword search:   man All Sections 1 - General Commands 2 - System Calls 3 - Subroutines, Functions 4 - Special Files 5 - File Formats 6 - Games and Screensavers 7 - Macros and Conventions 8 - Maintenence Commands 9 - Kernel Interface New Commands Server 4.4BSD AIX Alpinelinux Archlinux Aros BSDOS BSDi Bifrost CentOS Cygwin Darwin Debian DigitalUNIX DragonFly ElementaryOS Fedora FreeBSD Gentoo GhostBSD HP-UX Haiku Hurd IRIX Inferno JazzOS Kali Knoppix LinuxMint MacOSX Mageia Mandriva Manjaro Minix MirBSD NeXTSTEP NetBSD OPENSTEP OSF1 OpenBSD OpenDarwin OpenIndiana OpenMandriva OpenServer OpenSuSE OpenVMS Oracle PC-BSD Peanut Pidora Plan9 QNX Raspbian RedHat Scientific Slackware SmartOS Solaris SuSE SunOS Syllable Tru64 UNIXv7 Ubuntu Ultrix UnixWare Xenix YellowDog aLinux   9087 pages apropos Keyword Search (all sections) Output format html ascii pdf view pdf save postscript

ATPPC(4)		 BSD Kernel Interfaces Manual		      ATPPC(4)

NAME
     atppc — driver for AT-style parallel port chip sets

SYNOPSIS
     atppc* at acpi?
     atppc* at isa? port 0x378 irq 7 drq 3 flags 0x00
     atppc* at isapnp?
     atppc* at ofisa?
     atppc* at pnpbios? index ?
     atppc* at puc? port ?
     options ATPPC_VERBOSE
     options ATPPC_DEBUG

DESCRIPTION
     atppc supports parallel ports and provides the low level support needed
     by higher level drivers such as ppbus(4).	This driver attaches where the
     traditional NetBSD lpt(4) driver would ordinarily.	 It provides the data
     transport and chip set manipulation needed by higher driver layers, such
     as ppbus(4) and lpt(4).  This driver is designed to be one of many possi‐
     ble implementations supporting machine independent parallel device sup‐
     port via ppbus(4).

   IEEE 1284 support
     atppc is intended to provide to data-link like services to higher level
     IEEE 1284 device drivers (such as ppbus(4)).  atppc does not directly
     support IEEE 1284 features such as mode negotiation but rather provides
     the necessary infrastructure to allow a higher level driver to provide
     these services.

     atppc does provide chip set manipulation, device handshakes (where appro‐
     priate), low-level error detection, and data transfer.

   Supported data transfer modes
     atppc supports the following data transfer modes: Centronics Compatible
     (Standard), Nibble, Byte (PS2), Fast Centronics, ECP, and EPP.  Standard
     and Fast Centronics modes are write only, Nibble and Byte modes are read
     only, and ECP and EPP modes are bidirectional.

SEE ALSO
     acpi(4), i386/pnpbios(4), isa(4), isapnp(4), lpt(4), ofisa(4), ppbus(4),
     puc(4)

HISTORY
     The atppc driver is based on the ppc driver, which originally appeared in
     FreeBSD.  The driver was ported over in NetBSD 2.0.

AUTHORS
     This manual page is based on the FreeBSD ppc manual page.	The informa‐
     tion has been updated for the NetBSD port by Gary Thorpe.

BUGS
     The FreeBSD driver includes support for some specific chip sets, specifi‐
     cally detection of some non-standard device I/O locations on the ISA bus.
     This support was not ported over to the NetBSD version of the driver yet.

BSD			       January 30, 2004				   BSD

                             _         _         _ 
                            | |       | |       | |     
                            | |       | |       | |     
                         __ | | __ __ | | __ __ | | __  
                         \ \| |/ / \ \| |/ / \ \| |/ /  
                          \ \ / /   \ \ / /   \ \ / /   
                           \   /     \   /     \   /    
                            \_/       \_/       \_/ 

Vote for polarhome