On Mon, Mar 28, 2016 at 02:51:40PM +0800, Baolin Wang wrote: > On 25 March 2016 at 15:09, Peter Chen <hzpeterc...@gmail.com> wrote: > > On Thu, Mar 24, 2016 at 08:35:53PM +0800, Baolin Wang wrote: > >> Currently the Linux kernel does not provide any standard integration of > >> this > >> feature that integrates the USB subsystem with the system power regulation > >> provided by PMICs meaning that either vendors must add this in their > >> kernels > >> or USB gadget devices based on Linux (such as mobile phones) may not behave > >> as they should. Thus provide a standard framework for doing this in kernel. > >> > >> Now introduce one user with wm831x_power to support and test the usb > >> charger, > >> which is pending testing. Moreover there may be other potential users will > >> use > >> it in future. > >> > > > > 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? -- Best Regards, Peter Chen
