Messages in this thread | | | Subject | Re: [PATCH 2/2] usb: dwc3: pci add property to allow user space role switch | From | "Shah, Nehal-bakulchandra" <> | Date | Tue, 24 Aug 2021 21:32:32 +0530 |
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Hi On 8/24/2021 1:49 PM, Felipe Balbi wrote: > > Nehal Bakulchandra Shah <Nehal-Bakulchandra.shah@amd.com> 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.
Regards Nehal Shah
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