Re: [RFC PATCH v2 6/7] typec: tcpm: Represent source supply through power_supply class
From: Heikki Krogerus
Date: Mon Nov 27 2017 - 08:39:02 EST
On Sat, Nov 25, 2017 at 03:03:02PM +0100, Hans de Goede wrote:
> > Is it OK to everybody that the type of the psy is changed like that?
> > Hans?!
> >
> > We do have drivers that already change the type, for example
> > drivers/power/supply/isp1704_charger.c, but what does the user space
> > expect? The ABI for the power supply class was never documented I
> > guess.
>
> The main userspace consumer of the power_supply sysfs class is upower,
> upower knows about 3 types: "Mains", "Battery" and "USB", anything
> else it gives a type of UP_DEVICE_KIND_UNKNOWN. So POWER_SUPPLY_TYPE_USB_TYPE_C
> vs POWER_SUPPLY_TYPE_USB_PD_PPS does matter to it.
OK.
Thanks Hans,
--
heikki