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  1. Path: sparky!uunet!zaphod.mps.ohio-state.edu!cs.utexas.edu!usc!enterpoop.mit.edu!eru.mt.luth.se!lunic!sunic!chalmers.se!news.chalmers.se!dtek.chalmers.se!d9mikael
  2. From: d9mikael@dtek.chalmers.se (Mikael Wahlgren)
  3. Newsgroups: comp.os.os2.programmer
  4. Subject: Re: serial communication question
  5. Message-ID: <d9mikael.724155527@dtek.chalmers.se>
  6. Date: 12 Dec 92 10:18:47 GMT
  7. References: <1992Dec10.053208.12307@ucselx.sdsu.edu> <1992Dec11.044042.26612@vpnet.chi.il.us>
  8. Sender: news@news.chalmers.se
  9. Organization: Chalmers University of Technology, Gothenburg Sweden
  10. Lines: 14
  11. Nntp-Posting-Host: hacke6.dtek.chalmers.se
  12.  
  13. hb@vpnet.chi.il.us (hank barta) writes:
  14.  
  15. >:      Can anyone tell me if OS/2 uses interrupt-driven serial
  16. >: port buffering for COM1 & COM2?  I can't find that particular
  17. >: information anywhere, it seems.
  18.  
  19. >I believe it does. (Most any multitasker has to use interrupts or
  20. >_considerable_ hardware buffering.) I also have a deeply held 
  21. >belief that it supports the 16550 buffered UARTs.
  22.  
  23. Yes, the serial communications device driver in OS/2 certainly uses interrupts
  24. for its work.  It also supports 16550 buffered UARTs.
  25.  
  26. Mikael Wahlgren
  27.