INTRO(4)             OpenBSD Programmer's Manual (Mac68K)             INTRO(4)

NNAAMMEE
     iinnttrroo - introduction to special files and hardware support

DDEESSCCRRIIPPTTIIOONN
     The manual pages in section 4 describe 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 specification for use in constructing a system description for the
     config(8) program.  The DIAGNOSTICS section lists messages which may ap-
     pear 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 Mac.  Software sup-
     port for these devices comes in two forms.  A hardware device may be sup-
     ported 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 spe-
     cial 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 de-
     vice which did not autoconfigure, the system will have to be rebooted.

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

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

           adb(4)      Apple Desktop Bus event interface.
           ae(4)       DP8390-based ethernet interface.
           asc(4)      Apple Sound Chip.
           esp(4)      NCR 53C9x built-in SCSI interface.
           grf(4)      On-board and NuBus-based video interface.
           ite(4)      Mac68k Internal Terminal Emulator.
           mc(4)       MACE ethernet interface.
           ncrscsi(4)  NCR 5380 built-in SCSI interface.
           sbc(4)      Alternate driver for the NCR 5380 built-in SCSI inter-
                       face.
           sn(4)       DP83932-based ethernet interface (SONIC).
           zsc(4)      Zilog Z8530 built-in serial interface.

SSEEEE AALLSSOO
     autoconf(4), config(8)

HHIISSTTOORRYY
     The Mac68k iinnttrroo first appeared in NetBSD 1.2.

OpenBSD 3.5                      June 8, 1997                                1
