syfs attributes for signaling powersupply availability and condition?

[j.w.r.degoede at hhs.nl (Hans de Goede)]

Hi all,

I just got some info from Siemens (Thanks Thilo) on howto detect the presence 
of up to 2 power supplies with the fscscy and fscpos IC's and the status (OK or 
fail) of these. So we need to come up with a sysfs interface for this.

I suggest:
powersupplyX_present
powersupplyX_fault

How does that sound?

Regards,

Hans