https://buganizer.corp.google.com/issues/71489288#comment143

Noticed:
0502/133236:INFO:daemon.cc(796)] On AC (USB_PD, 0.000A at 4.3V, max 3.0A at 5.0V) with battery at 36% (displayed as 35%), 3.331/9.327Ah at 2.232A, 2h32m6s until full
[0502/133306:INFO:daemon.cc(796)] On AC (USB_PD, 0.000A at 4.3V, max 3.0A at 5.0V) with battery at 36% (displayed as 35%), 3.350/9.327Ah at 2.241A, 2h31m7s until full
[0502/133336:INFO:daemon.cc(796)] On AC (USB_PD, 0.000A at 4.3V, max 3.0A at 5.0V) with battery at 36% (displayed as 35%), 3.369/9.327Ah at 2.250A, 2h31m11s until full


Particularly, we're claiming 0A charging, which is confusing. I've seen the same on Kevin and Eve.

It looks like this is because powerd defaults to 0 for values it can't find in sysfs, and sysfs doesn't have this file because drivers/power/cros_usbpd-charger.c doesn't support it.

Should we support it?