sysfs-platform-phy-rcar-gen3-usb2

 1What:		/sys/devices/platform/<phy-name>/role
 2Date:		October 2016
 3KernelVersion:	4.10
 4Contact:	Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
 5Description:
 6		This file can be read and write.
 7		The file can show/change the phy mode for role swap of usb.
 8
 9		Write the following strings to change the mode:
10
11		 - "host" - switching mode from peripheral to host.
12		 - "peripheral" - switching mode from host to peripheral.
13
14		Read the file, then it shows the following strings:
15
16		 - "host" - The mode is host now.
17		 - "peripheral" - The mode is peripheral now.