Re: /sys/.../enclosure_device: ?

James Bottomley
2016-01-13T19:15:11Z

On Wed, 2016-01-13 at 11:28 -0500, Anne Mulhern wrote:
> Hi!
>
> I'm looking for the most precise information available about the
> meaning of <something>
> and from what it is derived. I'm also interested in what the values
> in the files in that directory
> may mean. Could somebody point me there?

It's in drivers/misc/enclosure.c:enclosure_link_name()

> Also, how can there be more than one enclosure_device subdirectory
> for the same device,
> or, alternatively, why isn't <something> stored in a file in the more
> regularly named directory
> /sys/.../enclosure_device?

I'm not sure I parse the question, but if you're asking how can a
single enclosure bay appear to have more than one device, that's when
there are multiple paths to the device.

James

> (It would be nice to be able to obtain the value of <something> using
> libudev's attribute
> lookup facilities, but making that value a part of the specially
> named directory enclosure_device:<something>
> makes such a process especially difficult.)
>
> Thanks,
>
> - mulhern
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