Re: udev and devfs - The final word

From: Helge Hafting (helgehaf_at_aitel.hist.no)
Date: 01/03/04

  • Next message: Pavel Machek: "Re: 2.5isms" 
    Date:	Sat, 3 Jan 2004 16:22:41 +0100
To: Greg KH <greg@kroah.com>

    On Fri, Jan 02, 2004 at 09:59:38PM -0800, Greg KH wrote:
    > On Thu, Jan 01, 2004 at 02:18:55AM +0100, Helge Hafting wrote:
    > > On Tue, Dec 30, 2003 at 04:29:42PM -0800, Greg KH wrote:
    > > >
    > > > 2) We are (well, were) running out of major and minor numbers for
    > > > devices.
    > >
    > > devfs tried to fix this one by _getting rid_ of those numbers.
    > > Seriously - what are they needed for?
    >
    > But devfs failed in this. The devfs kernel interface still requires a
    > major/minor number to create device nodes.
    >
    Yes. The numbers went unused in the common case of opening a device by name though.

    > Hopefully I can work on fixing this up in 2.7.

    Interesting - how do you plan to do this?
    There must be some connection from device node to driver. Devfs had
    a pointer in the inode. The old way has numbers, and spend time on
    a search.

    Are you considering a sort of "minimal devfs" managed by udev?

    Helge Hafting
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  • Next message: Pavel Machek: "Re: 2.5isms"

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