FW: wrapper device driver

[Valdis.Kletnieks at vt.edu]

On Mon, 02 Feb 2015 17:50:43 -0600, riya khanna said:
> The purpose of multiplexing is to either block undesired
> events/operations on devices (e.g. input, graphics) or respond to the
> applications based on the in-memory state of device instances.

Those who don't remember the history of filtering ioctl's for CD/RW devices
are doomed to repeat it... :)

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