Re: Serial driver hangs

[Alan Cox]

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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