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From: Greg KH <greg@kroah.com>
To: linux-hotplug@vger.kernel.org
Subject: Re: [PATCH] Adding '%s' format specifier to NAME and SYMLINK
Date: Mon, 16 Feb 2004 21:40:35 +0000	[thread overview]
Message-ID: <20040216214034.GA22823@kroah.com> (raw)
In-Reply-To: <402892DC.4000003@suse.de>

On Sat, Feb 14, 2004 at 07:32:58PM +0100, Kay Sievers wrote:
> On Thu, Feb 12, 2004 at 05:34:57PM -0800, Greg KH wrote:
> > On Tue, Feb 10, 2004 at 09:14:20AM +0100, Hannes Reinecke wrote:
> > > Hi all,
> > > 
> > > this patch makes the format for NAME and SYMLINK a bit more flexible: 
> > > I've added a new format specifier '%s{<SYSFS_var>}', which allows for 
> > > the value of any sysfs entry found for this device to be inserted.
> > > Example (for our S/390 fcp adapter):
> > > 
> > > BUS="ccw", SYSFS_devtype="1732/03", NAME="%k" \
> > > SYMLINK="zfcp-%s{hba_id}-%s{wwpn}:%s{fcp_lun}"
> > > 
> > > I know this could also be done with an external program, but having this 
> > > incorporated into udev makes life easier, especially if run from 
> > > initramfs. Plus it makes the rules easier to follow, as the result is 
> > > directly visible and need not to be looked up in some external program.
> > > 
> > > Comments etc. welcome.
> > 
> > Oops, sorry I missed this for the 017 release.  I'll look at it tomorrow
> > and get back to you.  At first glance it looks like a good thing.
> > 
> > Oh, you forgot to update the documentation, that's important to do if
> > you want this change to make it in :)
> 
> I took a part of the code and made a version that uses already implemented
> attribute finding logic.
> 
> The parsing of the format length '%3x' and the '%x{attribute}' is a fuction now,
> maybe there are more possible users in the future.
> 
> I've also added the test to udev-test.pl.

Nice cleanup.  I've applied this.

thanks,

greg k-h


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  parent reply	other threads:[~2004-02-16 21:40 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-02-10  8:14 [PATCH] Adding '%s' format specifier to NAME and SYMLINK Hannes Reinecke
2004-02-13  1:34 ` Greg KH
2004-02-14 18:32 ` Kay Sievers
2004-02-15  2:36 ` Kay Sievers
2004-02-16  0:54 ` Kay Sievers
2004-02-16 21:40 ` Greg KH [this message]
2004-02-16 21:40 ` Greg KH

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