> This raises a generally interesting question:  When should a driver module
> be loaded?

For end users, whenever its hardware is connected.
That's the policy used by hotplug and by pcmcia_cs.

Applications that don't automatically notice the
new devices may need to get kicked too; having the
driver isn't necessarily enough.  But it's often
sufficient, if the apps are smart enough to notice
what device nodes the driver(s) have activated.

Some developers and sysadmins may need different
answers.  For example, "hot-upgrading" a driver
involves removing it while its hardware is present.
After cleanly shutting down everything using it...





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