prefix(D1)

NAME
     prefix - driver prefix

SYNOPSIS
     int prefixclose();
     int prefixopen();
     . . .

DESCRIPTION
     Every driver must define a unique prefix.  This enables driver entry
     points to be identified by configuration software and decreases the
     possibility of global symbol collisions in the kernel.

USAGE
     The prefix is usually specified in a configuration file.  The maximum
     length of the prefix is implementation-defined.  Driver entry points
     names are created by concatenating the driver prefix with the name for
     the entry point.

   Examples
     An ETHERNET driver might use a driver prefix of ``en.''  It would define
     the following entry points:  enclose, eninit, enintr, enopen,
      enwput, enrsrv, and enwsrv.  It would also define the data symbols
     endevflag and eninfo.

REFERENCES
     devflag(D1), info(D1), close(D2), halt(D2), init(D2), intr(D2),
     ioctl(D2), mmap(D2), open(D2), poll(D2), print(D2), put(D2), read(D2),
     size(D2), srv(D2), start(D2), strategy(D2), unload(D2), write(D2)