RE: Expose system Serial Number to userspace.

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That's perfect, thanks!


-----Original Message-----
From: Nicolas Pitre [mailto:nico@xxxxxxxxxxx]
Sent: August-29-12 9:51 AM
To: Brad Arnold
Cc: linux-embedded@xxxxxxxxxxxxxxx
Subject: Re: Expose system Serial Number to userspace.

On Wed, 29 Aug 2012, Brad Arnold wrote:

> Hi,
> I'm working on an embedded board which uses u-boot + linux. At
> manufacturing time, the device serial number will be programmed into
> OTP memory on NAND (probably from within u-boot). We'd like the linux
> kernel to make this serial number available to be read from userspace.
> Is there an accepted method to do this sort of thing?

A serial number field is available from /proc/cpuinfo already.  you just
have to initialize it through the system_serial_high and system_serial_low
global variables.

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