Messages in this thread | | | Date | Fri, 27 Jul 2007 11:11:42 -0700 | From | Lee Howard <> | Subject | Re: serial flow control appears broken |
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Maciej W. Rozycki wrote:
> The TTY line discipline driver could do that based on the amount of >received data present in its buffer. And it should if asked to (a brief >look at drivers/char/n_tty.c reveals it does; obviously there may be a bug >somewhere though). So could e.g. the SLIP and PPP line discipline >drivers, though the criteria might be different (apparently they do not, >which is a shame). > > 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?
I've asked the manufacturer to take a look at drivers/char/n_tty.c to see if they can't see anything obvious.
Thanks,
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