pussuw commented on issue #8917:
URL: https://github.com/apache/nuttx/issues/8917#issuecomment-1488812379

   The inner workings of those copy_from/to_user are basically handling the 
access rights from/to user space. Normally the kernel cannot access the user's 
memory and those functions are used to wrap the operation:
   
   - open access to user
   - read/write to user
   - close access to user
   


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