Re: [PATCH] udev: persistent FireWire device names

Kay Sievers wrote:
> On Wed, Jul 4, 2012 at 7:08 PM, Clemens Ladisch <[email protected]> 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

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