Michael Cardell Widerkrantz d0c049cdba
fw/ch552: Document new dynamic endpoint functionality
The CH552 firmware has an added functionality to control the USB
controller dynamically, turning on and off endpoints with a small
protocol.

Since most of the documentation for the already lives in the ordinary
firmware README, add this documentation there, too.
2025-04-07 11:00:32 +02:00
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