Re: FreeBSD 5/6/7 kernel emulator for NetBSD 2.x

From: M. Warner Losh (imp_at_bsdimp.com)
Date: 10/29/05

  • Next message: Dinesh Nair: "Re: locking in a device driver" 
    Date: Sat, 29 Oct 2005 00:01:42 -0600 (MDT)
To: rpaulo@fnop.net

    In message: <20051026181403.GF1702@neuron.fnop.net>
                Rui Paulo <rpaulo@fnop.net> writes:
    : On 2005.10.26 10:22:52 -0700, Bill Studenmund wrote:
    : | On Mon, Oct 24, 2005 at 10:35:47PM +0200, Hans Petter Selasky wrote:
    : | >
    : | > Main features:
    : | >
    : | > - Implements FreeBSD's devfs on NetBSD.
    : |
    : | In the past, we (NetBSD folks) have talked about a devfs. One issue that
    : | has come up (I'll be honest, I've raised it a lot) is a desire to retain
    : | permission changes across boots, and to tie devices (when possible) to a
    : | device-specific attribute rather than a probe order.
    : |
    : | Does FreeBSD's devfs support locators and persistent information? Are
    : | there plans to support something like that, if not?
    :
    : I remember Linux's devfs having a configure file for that particular
    : objective. The user would set the permission flags in (I can't recall
    : if this is the real name) /etc/devfsd.conf and let devfsd do the job.
    :
    : You could also use another directory for permissions, like /dev-state,
    : but personally, I don't like this method.
    :
    : http://www.atnf.csiro.au/people/rgooch/linux/docs/devfs.html#persistence

    FreeBSD also has a file that can be used to control the permissions
    and ownerships at runtime. The persistance can be there, but isn't
    there by default like the old nodes in /dev.

    Warner
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  • Next message: Dinesh Nair: "Re: locking in a device driver"

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