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- What: /sys/bus/platform/devices/ci_hdrc.0/role
- Date: Mar 2017
- Contact: Peter Chen <[email protected]>
- Description:
- When read, it returns string "gadget" or "host", indicating
- the current controller role.
- It will do role switch when "gadget" or "host" is written to it.
- Only controller at dual-role configuration supports writing.
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