Messages in this thread | | | Subject | Re: Serial driver hangs | From | Alan Cox <> | Date | Tue, 28 Sep 2004 23:12:44 +0100 |
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On Mer, 2004-09-29 at 00:03, Paul Fulghum wrote: > The alternative is to implement a flow control > mechanism between the flip buffer layer and > the tty drivers to (at the very least) > enable/disable receive interrupts.
We have throttle()/unthrottle(). Drivers also know if they can't push data.
> Since the flip buffer implementation is probably > going to need rework anyways (eventually) along > with the other tty locking issues, this may not > be a trivial task.
TTY_DONT_FLIP has to die. It's already broken for many cases. Its basically a nasty quickfix someone did ages ago
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