From: address@is.invalid   
      
   JJ,   
      
   > Bottom line is, what you're looking for is vendor-specific   
      
   With all due respect, but how do you know that its vendor specific ?   Do   
   you have info you have not mentioned yet ?   
      
   > Windows API doesn't directly provide it.   
      
   I've not been able to find an API call for it either.  But that I have not   
   found it does not prove in any way that it doesn't exist.   Hence my   
   question.   
      
   And no, I've not been able to find any XP(!) Windows API support myself. But   
   as XP as way older than the CP2102 it rather possible that such a IoCtrl   
   command was added after I got my copy of the OS.   
      
   Which just means that I, if such an IoCtrl code has been added (and become   
   mainstream since than), would need to execute an "NTIoControlDeviceFile"   
   call myself.  Not something I regard as problematic.   
      
      
   The bottom line to me is that you have no information of anything like it   
   existing, and are concluding that it /thus/ (if it exists) must be a   
   vendor-specific.   
      
   I'm afraid that that doesn't quite work for me.   You could be absolutily   
   right, but as you haven't brought anything forward to support it with I   
   can't take it as an answer.  Sorry.   
      
   I'll just do some more disassembling and googeling I guess. :-)   
      
   Regards,   
   Rudy Wieser   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)