Specifications

System Macros Invoked by Drivers

This chapter describes system macros that are the most frequently used by

device drivers. When referring to these macro descriptions note the following

conventions:

• If an argument is enclosed in brackets, you can choose to include that

argument or omit it.

• The operating system assigns values by default to certain arguments. If

you omit one of these arguments, the macro behaves as if you speciﬁed the

argument with its default value. In the macro descriptions contained in

this chapter, the format signiﬁes such arguments with an equal sign (=)

separating the argument from its keyword. For example:

SETIPL [ipl=31]

• If an argument takes a keyword value, specify the keyword value using all

uppercase letters. For example:

preserve=YES

condition=RESTORE

General information about the structure of macros and their arguments appears

in the VAX MACRO and Instruction Set Reference Manual.

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