how to implement mmap for sysfs device driver

[Valdis.Kletnieks at vt.edu]

On Fri, 20 Sep 2013 14:24:02 +0530, Niroj Pokhrel said:

> i. I have created a sysfs bin files (because it support mmap)

This is *definitely* the Wrong Way To Do I/O.  Period. Full Stop.

Please implement an actual character or block special device, as appropriate
for the hardware in question.


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