RSS Reverse Engineering the Switch Pro Controller Wired mode

GBATEMP

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Dec 15, 2024
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With the new wired mode on the Switch for Pro controllers, I finally dug up my old BeagleBone Black and managed to coax it into getting a USB traffic dump of the Pro controller wired to the Switch.

Dump: https://toadking.com/switch-pro-wired.pcap

Interesting notes:
  • All communication is USB interrupt based, no control transfers outside of descriptor stuff.
  • Poll rate is 125Hz, just like your normal USB controller. EDIT: It appears to fluctuate in report speed, and...

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