[PATCHv5 0/3] Introduce the /proc/socinfo and use it to export OMAP data

[Jamie Iles]

On Wed, Mar 02, 2011 at 03:42:33PM +0100, Linus Walleij wrote:
> 2011/3/2 Jamie Iles <jamie at jamieiles.com>:
> 
> >> > /sys/devices/system/soc/
> >> > /sys/devices/system/soc/unique_id<- Unified way to export an ID for all machs
> >>
> >> Arbitrary number of bits? Some will have a 64-bit ID, some will have 32-bit
> >> etc.
> >>
> >> Should we say it's a hex string of 64 bits?
> >
> > Could we provide hooks for the platform that takes the buffer and length
> > and let the platform do the snprintf()?  Our devices have a 128-bit
> > serial number and I'm sure there must be others.
> 
> Isn't it better to just make it 64-bit so that apps can always parse it,
> and then you can have your high-res numbers under mach?
> 
> If there is no solid ABI for this there is no point to make it
> generic under /soc/unique_id at all.

I guess I'd argue that a arbitrary length hex string could be considered 
as a solid ABI but you're right that it's probably more important to get 
something out there and I'm probably being too picky, so apologies!

Jamie