"Shah, Nehal-bakulchandra" <nehal-bakulchandra.shah@xxxxxxx> writes: > Hi > On 8/24/2021 1:49 PM, Felipe Balbi wrote: >> Nehal Bakulchandra Shah <Nehal-Bakulchandra.shah@xxxxxxx> writes: >> >>> For AMD platform there is a requirement to enable user space role >>> switch from host to device and device to host by means of running >>> following commands. >>> >>> HOST: echo host > /sys/class/usb_role/dwc3.0.auto-role-switch/role >>> DEVICE: echo device > /sys/class/usb_role/dwc3.0.auto-role-switch/role >> A more important question that needs to be answered: why? >> > Our customer platform is not completely capable of OTG i.e with type C > controller it does not have PD to support role switching. Hence, they > have script which triggers the role switch based on ACPI/EC interrupt. sounds like some generalized version of this text should be added to commit log. -- balbi
