INTRO(4)             NetBSD/pc532 Kernel Interfaces Manual            INTRO(4)

NNAAMMEE
     iinnttrroo -- introduction to pc532 special files and hardware support

DDEESSCCRRIIPPTTIIOONN
     This section describes the special files, related driver functions, and
     networking support available in the system.  In this part of the manual,
     the SYNOPSIS section of each configurable device gives a sample specifi-
     cation for use in constructing a system description for the config(1)
     program.  The DIAGNOSTICS section lists messages which may appear on the
     console and/or in the system error log _/_v_a_r_/_l_o_g_/_m_e_s_s_a_g_e_s due to errors in
     device operation; see syslogd(8) for more information.

     This section contains both devices which may be configured into the sys-
     tem and network related information.  The networking support is intro-
     duced in netintro(4).

DDEEVVIICCEE SSUUPPPPOORRTT
     This section describes the hardware supported on the PC532 platform.
     Software support for these devices comes in two forms.  A hardware device
     may be supported with a character or block _d_e_v_i_c_e _d_r_i_v_e_r, or it may be
     used within the networking subsystem and have a _n_e_t_w_o_r_k _i_n_t_e_r_f_a_c_e _d_r_i_v_e_r.
     Block and character devices are accessed through files in the file system
     of a special type; see mknod(8).  Network interfaces are indirectly
     accessed through the interprocess communication facilities provided by
     the system; see socket(2).

     A hardware device is identified to the system at configuration time and
     the appropriate device or network interface driver is then compiled into
     the system.  When the resultant system is booted, the autoconfiguration
     facilities in the system probe for the device and, if found, enable the
     software support for it.  If a device does not respond at autoconfigura-
     tion time it is not accessible at any time afterwards.  To enable a
     device which did not autoconfigure, the system must be rebooted.

     The autoconfiguration system is described in autoconf(4).  A list of the
     supported devices is given below.

SSEEEE AALLSSOO
     config(1), autoconf(4), cd(4), sd(4), ss(4), st(4)

SSUUPPPPOORRTTEEDD SSYYSSTTEEMMSS
     The pc532 is a custom motherboard that fits in a PC/AT case, with a 25
     MHz National Semiconductor 32532 CPU and 32381 FPU.  There are less than
     200 of these systems in the world.

LLIISSTT OOFF DDEEVVIICCEESS
     The devices listed below are supported in this incarnation of the system.
     Devices are indicated by their functional interface.  Not all supported
     devices are listed.

     lpt    Centronics parallel port driver

     mem    memory files

     ncr    NCR5380/DP8490 low level SCSI interface

     plip   Option for the lpt driver to allow IP over Centronics parallel
            ports

     scn    Signetics DUART serial communications interface

HHIISSTTOORRYY
     This pc532 iinnttrroo appeared in NetBSD 1.4.  Large chunks of text carefully
     recycled (shamelessly appropriated) from NetBSD/pmax intro(4).

NetBSD 4.0                      August 13, 1997                     NetBSD 4.0
