linux - How can I create a fake device file to mimic dev/mem? -

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i want control access dev/mem.

in order so, thinking of creating fake dev/mem, processes access instead of actual dev/mem.

my process modify dev/mem depending on changes in fake one.

is possible? if so, how do this?

look @ drivers/char/mem.c, in chr_dev_init(), remove register, class_create, device_create calls. move these calls driver , driver's read/write calls, directly call ones in mem.c


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