On Mon, Mar 28, 2016 at 03:13:51PM +0800, Peter Chen wrote:
> On Mon, Mar 28, 2016 at 02:51:40PM +0800, Baolin Wang wrote:

> > > I am afraid I still not find the user (udc driver) for this framework, I would
> > > like to see how udc driver block the enumeration until the charger detection
> > > has finished, or am I missing something?

> > It is not for udc driver but for power users who want to negotiate
> > with USB subsystem.

> Then, where is the code the test user to decide what kinds of USB charger
> (SDP, CDP, DCP) is connecting now?

Even without detection of CDP and DCP we have configurability within SDP
- there's the 2.5mA suspended limit, the 100mA default limit and the
higher 500mA limit which can be negotiated.