From mboxrd@z Thu Jan 1 00:00:00 1970 From: Clemens Ladisch Date: Wed, 04 Jul 2012 19:48:04 +0000 Subject: Re: [PATCH] udev: persistent FireWire device names Message-Id: <4FF49DF4.4080208@ladisch.de> List-Id: References: <4FF47870.3020509@ladisch.de> In-Reply-To: <4FF47870.3020509@ladisch.de> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-hotplug@vger.kernel.org Kay Sievers wrote: > On Wed, Jul 4, 2012 at 7:08 PM, Clemens Ladisch wrote: >> Makefile.am | 1 + >> rules/60-persistent-firewire.rules | 26 ++++++++++++++++++++++++++ >> 2 files changed, 27 insertions(+), 0 deletions(-) > > What is this useful for? Firewire is by definiton a hotplug bus, and > application dealing with raw firewire nodes, need to manage that > anyway. Most normal applications indeed do this. > what kind of problem would that solve, that isn't better solved at > the application level? There are several testing and debugging tools where devices are selected not by their capabilities but by their identity. It would certainly be possible to add code to lookup devices by their GUID or name, but having udev create a bunch of symlinks is much simpler. Regards, Clemens