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1What: /sys/devices/platform/<renesas_usb3's name>/role2Date: March 20173KernelVersion: 4.134Contact: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>5Description:6 This file can be read and write.7 The file can show/change the drd mode of usb.8 9 Write the following string 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.18