Re: config(5) break down

[Masao Uebayashi <uebayasi%gmail.com@localhost>]

On Sun, Mar 21, 2010 at 1:01 AM, Matt Thomas <matt%3am-software.com@localhost> 
wrote:
> I'm talking about <maj, min> to device.  How, as a user, do I know what 
> actual tty does /dev/ttyXX open?

If we make tty(4) a device, we can lookup its parent by drvctl(8)
(extend it to return dv_parent).

My question is - is this the only reason why each serial driver has
its own device entry?

Masao