lkml.org 
[lkml]   [2000]   [Feb]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [PATCH] devfs v99.11 available
    James A. Simmons writes:
    >
    > On Thu, 10 Feb 2000, Khimenko Victor wrote:
    >
    > > In <Pine.LNX.4.10.10002090846040.2414-100000@maxwell.futurevision.com> James Simmons (jsimmons@acsu.buffalo.edu) wrote:
    > >
    > > >> This is against 2.2.14. Highlights of this release:
    > > >>
    > > >> - Ported devfs-patch-v99.10 to kernel 2.2.14
    > > >>
    > > >> - Moved /dev/tty0 to /dev/vc/0
    > >
    > > > Why did you move tty0 to vc/0 ? The console system will be changing for
    > > > 2.5.X. It will become multihead aware which means that we might end up
    > > > with /dev/tty representing physical heads and /dev/vty to represent
    > > > virtual consoles.
    > >
    > > There are EXECTLY one tty with devfs now: /dev/tty - current tty for process.
    > > I think this name is used that way even before Linux.
    >
    > Right. That will not change.
    >
    > > Now there are
    > > /dev/vc/* to represent virtual consoles and /dev/vcc/* to represent color
    > > virtual consoles (i.e. virtual consoles with attributes).
    >
    > Okay. Instead of /dev/vtyX like I was think of.
    >
    > > /dev/tty0 was
    > > "current" virtual console. So it naturally belond to /dev/vc/0 .
    >
    > Which will change meaning if their is more than one head.

    The change would happen anyway, irrespective of devfs.

    > > With multihead
    > > one additional directory can be itroduced for physical heads
    > > (/dev/<something>/*) but /dev/vc/* will be virtual consoles anyway and
    > > /dev/vc/0 will be current virtual console.
    >
    > I understand but see below.
    >
    > > You can not use names /dev/tty/*
    > > for "physical heads" and use /dev/tty at the same time (even with devfs you
    > > can not have character device and directory with the same name in one
    > > subdirectory). So what's strange with this decision ?
    >
    > Thats not what I was saying. /dev/ttyX represent each head and /dev/vtyX
    > represent each virtual console.
    >
    > The question is where did this design come from? Is their a
    > technical or standards issue reason for this change ? Its no big
    > deal except for breaking things. I just want to know thw reasoning
    > behind this design.

    I still don't see what is being broken by this change in devfs.

    Regards,

    Richard....
    Old: rgooch@atnf.csiro.au
    Current: rgooch@ras.ucalgary.ca

    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.rutgers.edu
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2005-03-22 13:56    [W:0.023 / U:0.696 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site