Re: [PATCH] udev - advanced user query options

[Greg KH <greg@kroah.com>]

On Mon, Jan 12, 2004 at 07:05:17PM +0100, David Zeuthen wrote:
> On Sun, 2004-01-11 at 03:33, Kay Sievers wrote:
> > This patch improves the user options for udev.
> > It is possible now to query for the name, the symlinks or owner/group.
> > If asked for the name of the node we are able to prepend the udev_root
> > with the -r option.
> > 
> > SAMPLE:
> > 
> >   kay@pim:~/src/udev.test$ ./udev -V
> >   udev, version 012_bk
> > 
> >   kay@pim:~/src/udev.test$ ./udev -h
> >   Usage: [-qrVh]
> >     -q <name>  query database for the specified value
> >     -p <path>  device path used for query
> >     -r         print udev root
> >     -V         print udev version
> >     -h         print this help text
> > 
> >   kay@pim:~/src/udev.test$ ./udev -r
> >   /udev/
> > 
> >   kay@pim:~/src/udev.test$ ./udev -q name -p /class/video4linux/video0
> >   video/webcam0
> > 
> >   kay@pim:~/src/udev.test$ ./udev -q symlink -p /class/video4linux/video0
> >   camera0 kamera0
> > 
> >   kay@pim:~/src/udev.test$ ./udev -q owner -p /class/video4linux/video0
> >   501
> > 
> >   kay@pim:~/src/udev.test$ ./udev -r -q name -p /class/video4linux/video0
> >   /udev/video/webcam0
> > 
> 
> This is quite neat, but is it backwards compatible with how the current
> udev release works? I actually do stuff like
> 
>  udev -q /block/sda
> 
> from HAL and expect to get the reply
> 
>  sda

Nope, this is now changed, sorry :(

thanks,

greg k-h


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