1a932a804SPeter ChenWhat: /sys/bus/platform/devices/ci_hdrc.0/role 2a932a804SPeter ChenDate: Mar 2017 3a932a804SPeter ChenContact: Peter Chen <peter.chen@nxp.com> 4a932a804SPeter ChenDescription: 5*c68c0db4SRandy Dunlap When read, it returns string "gadget" or "host", indicating 6*c68c0db4SRandy Dunlap the current controller role. 7a932a804SPeter Chen 8*c68c0db4SRandy Dunlap It will do role switch when "gadget" or "host" is written to it. 9a932a804SPeter Chen Only controller at dual-role configuration supports writing. 10