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[ts-7000] /dev/mem and /dev/shm

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Subject: [ts-7000] /dev/mem and /dev/shm
From: "Yan Seiner" <>
Date: Fri, 28 Oct 2005 23:58:13 -0000
Could someone please point me at some docs that explain the difference
between /dev/mem and /dev/shm?

It seems like both do essentially the same thing....

I'm tyring to figure out the best way to use the battery-backed sram
on these boards;  I need a way to a) share data between running
applications, and b) keep that data secure during powerfails and
shutdowns.

Both /dev/shm and /dev/mem seem similar; one is POSIX and the other is
not....  So what's the deal?

--Yan






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