acassis commented on PR #16287:
URL: https://github.com/apache/nuttx/pull/16287#issuecomment-2839893097

   @szafonimateusz-mi did you know that USB EHCI has a native debug function 
that doesn't require USB stack initialization?
   
   
https://web.archive.org/web/20150213024207/https://www.coreboot.org/EHCI_Debug_Port
   
   That is something that people used with LinuxBIOS/coreboot to get early 
debug on boards without serial port.


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