19bb86777SYoshihiro ShimodaWhat: /sys/devices/platform/<phy-name>/role 29bb86777SYoshihiro ShimodaDate: October 2016 39bb86777SYoshihiro ShimodaKernelVersion: 4.10 49bb86777SYoshihiro ShimodaContact: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> 59bb86777SYoshihiro ShimodaDescription: 69bb86777SYoshihiro Shimoda This file can be read and write. 79bb86777SYoshihiro Shimoda The file can show/change the phy mode for role swap of usb. 89bb86777SYoshihiro Shimoda 99bb86777SYoshihiro Shimoda Write the following strings to change the mode: 10*54a19b4dSMauro Carvalho Chehab 11*54a19b4dSMauro Carvalho Chehab - "host" - switching mode from peripheral to host. 12*54a19b4dSMauro Carvalho Chehab - "peripheral" - switching mode from host to peripheral. 139bb86777SYoshihiro Shimoda 149bb86777SYoshihiro Shimoda Read the file, then it shows the following strings: 15*54a19b4dSMauro Carvalho Chehab 16*54a19b4dSMauro Carvalho Chehab - "host" - The mode is host now. 17*54a19b4dSMauro Carvalho Chehab - "peripheral" - The mode is peripheral now. 18