Hi Michael, On Tue, 27 Jul 2021 10:15:28 +0200 Michael Walle <michael@xxxxxxxx> wrote: > Why do we have to distiguish between LEDs connected to the PHY and LEDs > connected to the MAC at all? Why not just name it ethN either if its behind > the PHY or the MAC? Does it really matter from the users POV? Because 1. network interfaces can be renamed 2. network interfaces can be moved between network namespaces. The LED subsystem is agnostic to network namespaces So it can for example happen that within a network namespace you have only one interface, eth0, but in /sys/class/leds you would see eth0:green:activity eth1:green:activity So you would know that there are at least 2 network interfaces on the system, and also with renaming it can happen that the first LED is not in fact connected to the eth0 interface in your network namespace. Marek
