On Wed, Dec 13, 2017 at 01:17:23AM +0000, Takashi Matsuzawa wrote: > Hello. > > >If you have a Type-C connector on your board, then you also should > >have a USB Type-C PHY that takes care of CC logic. The host-to-device > >relationship is determined using the Configuration Channel (CC) that > >goes through the USB Type-C cable. Note that CC is not the same as ID! > > I am playing with i.MX6 pico board, which has USB-OTG receptacle with USB-C physical shape. > http://download.wandboard.org/hobbitboard-imx6ul/documentation/pico-imx6ul-emmc-hobbit-reva1-hardware-manual-20160328.pdf > > I think the USB-OTG PHY is part of i.MX6UL SoC? Yes, but it is just USB PHY, not PD PHY. You need external pure CC-logic chip (like PTN5150), or Type-C PD chip (like PTN5110) to support CC or PD event. -- Best Regards, Peter Chen -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
