Configuring a Loadable Driver

You compile and configure a loadable driver very much as you would a nonloadable driver. The differences are as follows:

You provide an additional global variable with the public name pfxmversion.
You use a few different compile options.
You decide when the driver should be loaded, and use appropriate flags in the descriptive line in the master file.

For more background on loadable modules, see the mload(4) and ml(1) reference pages.