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

NAME
     intro -- introduction to dreamcast special files and hardware support

DESCRIPTION
     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 /var/log/messages 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).

DEVICE SUPPORT
     This section describes the hardware supported on the Dreamcast platform.
     Software support for these devices come in two forms.  A hardware device
     may be supported with a character or block device driver, or it may be
     used within the networking subsystem and have a network interface driver.
     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.

LIST OF DEVICES
     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.

     Standard builtin devices:
           g2bus    ``G2'' internal I/O bus
           gapspci  PCI bridge used in expansion port peripherals
           gdrom    Builtin GD-ROM optical disc drive
           pvr      Framebuffer device using the builtin NEC PVR graphics sub-
                    system
           aica     Builtin AICA sound system

     Controller port peripherals are supported though the maple(4) bus and
     associated device drivers.

     Network interfaces:
           rtk      Ethernet driver for the HIT-0400 Broadband Adapter
           mbe      Ethernet driver for the HIT-0300 LAN Adapter

SEE ALSO
     config(1), autoconf(4), netintro(4)

HISTORY
     The intro man page appeared in NetBSD 2.0.

NetBSD 5.0_STABLE               August 24, 2003              NetBSD 5.0_STABLE
