Re: [Linuxconsole-dev] writeup

[Brad D. <br...@ne...>]

-----Original Message-----
From: James Simmons <jsi...@ac...>

>
>> That reminds me...  Can there be only ONE console?  In a multi-head
>> environment, does each head have a console, or does the primary have the
>> only console?
>
>A console can be many things. It can be also a serial console like a real
>vt100 plugged into your serial port. It can also be a virtual device built
>from a keyboard and a video display. A head is a bit more flexiable. It's
>a collect of input and output devices. A head is equal to a active VT
>normally. If you ave more than one head than you have more than one
>active VT. What I like to see is a raw interface to hardware devices
>(/dev/fb,/dev/input, /dev/dsp) such a a userland app can grab them to
>expand what a head is. This keeps the VT code simple and yet allows a
>userland app great power. Of course you have to manage things so people
>don't grab things that already belong to someone else.


I guess a head could simply be defined as "A head is equal to an active VT".
The definition of a head is implied by VT.

My question didn't get answered, tho...  Or maybe I'm using the wrong
definition of console:  Can there be two active consoles at the same time
(in the instance of multi-head)?  When I ask this, I'm thinking of say,
kernel message output to console.

Thanks,

Brad Douglas
br...@ne...
http://www.linux-fbdev.org