On Thu, Oct 13, 2005 at 08:12:57AM +0800, John Summerfied wrote:
> David Boyes wrote:
>
> >
> >If process acquires lock on /sysfs/zvm/diag/8/lock (ie flock succeeds),
> >then
> >write CP command into cmdstring to prepare for call. Once parameters are
> >loaded, open of /dev/diag8 and write a 1 to /dev/diag8 to execute the
>
> I don't understand why you would use a device for this which seems to me
> is just another control function. Doesn't this function belong in sysfs too?

Because sysfs exposes attributes.  Everything that's a request / reponse
call to some underlying layer (be it hardware or software) is
fundamentally ill-suite for sysfs.

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