On Fri, 27 Jul 2007, Lee Howard wrote:

quoted

The serial drivers have nothing to do about it -- all they can do is pushing
data upstream, to the discipline driver.  They can provide an interface to
hardware flow control features though, if implemented by a given UART.

Thank you for this clarification.  So I should have more correctly been saying
that "tty flow control appears broken".  Right?

 Probably.  It might be, as Alan suggested, that it is meant to work, but 
the latency kills it.

  Maciej