INTRO(4)        NetBSD Programmer's Manual (SUN3 Architecture)        INTRO(4)

NNAAMMEE
     iinnttrroo - introduction to 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(8)
     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 Sun3 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 ac-
     cessed 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 de-
     vice 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
     cd(4), sd(4), ss(4), st(4), autoconf(4), config(8).

SSUUPPPPOORRTTEEDD SSYYSSTTEEMMSS
     The following Sun3 system architectures and models are supported:

     sun3    Sun3 systems: (MC68020)
             Sun 3/50 (16 MHz)
             Sun 3/60 (20 MHz)
             Sun 3/100 series (16.67 MHz)
             Sun 3/200 series (25 MHz)

     sun3x   Sun3X systems: (MC68030)
             Sun 3/80  (20 MHz)
             Sun 3/470 (33 MHz)

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.

     bwtwo   black and white obio frame buffer

     cgtwo   8 bit VMEbus color frame buffer

     cgfour  8 bit obio color graphics frame buffer

     eeprom  Sun non-volatile configuration RAM driver

     esp     NCR53C90 ESP100 (Sun 3/80) SCSI controller

     fd      Intel 82072 obio (Sun 3/80) floppy disk drive controller

     ie      Intel 82586 Ethernet controller (Sun 3/100, 3/200, 3/470)

     kbd     Sun type 2, type 3, type 4, and type 5 keyboards (on zs)

     le/lebuffer
             AMD 7990 LANCE ethernet controller (Sun 3/50, 3/60, 3/80)

     ms      Sun mouse (on zs)

     si      NCR5380 "SCSI-3" VMEbus SCSI controller

     vme     VMEbus support (Sun 3/100, 3/200, 3/470)

     xd      Xylogics 753/7053 VMEbus SMD disk controller

     xy      Xylogics 450/451 VMEbus SMD disk controller

     zs      Zilog 8530 serial controller

UUNNSSUUPPPPOORRTTEEDD DDEEVVIICCEESS
     The following devices are not supported, due to unavailability of either
     documentation or sample hardware:

     sc      Sun "SCSI-2" VMEbus SCSI controller

HHIISSTTOORRYY
     This sun3 iinnttrroo appeared with NetBSD 1.3.  Large chunks of text carefully
     recycled (shamelessly appropriated) from NetBSD/pmax intro(4).

NetBSD 1.4                      August 13, 1997                              2
