Re: old-school tty garbage collection: comcontrol

On Sun, Aug 31, 2025, 6:28 PM Tomek CEDRO <tomek@cedro.info> wrote:

> On Mon, Sep 1, 2025 at 1:52 AM Warner Losh <imp@bsdimp.com> wrote:
> > (..)
> > But it only leaves 'drainwait' in comcontrol(8), and that's not been
> relevant to modems since the late 90s (the ones that were trouble largely
> disappeared from service by 2005). I wonder if we might not want to just
> retire comcontrol entirely. This one feature is the sole-surviving remnant
> from the 386BSD patchkit driver that Christopher G. Demetriou wrote that
> FreeBSD 1 imported (and we reimported into FreeBSD 2).
> > Does anybody still use it? I think not.
>
> Isn't camcontrol still used by ada/cd/da/pass devices?
>

For c*A*mcontrol is yes. But I'm talking about c*O*mcontrol... I had
totally forgotten about it since I think I last used it in the 90s... and
even then it was for a custom serial device the hw engineer fixed to not
need it.

Warner

-- 
> CeDeROM, SQ7MHZ, http://www.tomek.cedro.info
>