intro(4)intro(4)Nameintro - introduction to special files
Description
Section 4 describes the special files, related driver functions, and
networking support available in the system. In this part of the man‐
ual, the Syntax heading of each configurable device gives a sample
specification for use in constructing a system description for the pro‐
gram. The Diagnostics heading lists messages that may appear on the
console and in the system error log file due to errors in device opera‐
tion.
This section contains descriptions of both configurable devices, 4
entries, and network-related device information, 4n, 4p, and 4f
entries. The networking support is introduced in Software support for
these devices comes 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''.
There are some devices that have fixed input/output space CSR addresses
and interrupt vector addresses. There are no address switches or
jumpers that need to be set up by the customer or Field Service.
FilesSee Alsointro(4n), MAKEDEV(8)intro(4)