This allows you to initialize usb_host.Port once successfully and
then returns the same object as long as you pass the same arguments
in. It does allow you to fix incorrect pins but not switching from
one valid set to another. (It needs a reset for that.)
This also moves hcd cache operations to RAM so that they don't
access the cache when doing maintenance.
This directory contains third-party, low-level C libraries and SDKs.
Libraries that do not target any specific platform are generally chosen
based on them being independent and efficient.
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