I'm working on a small project that requires that I be able to detect a
network card's link status (link light) or some equivalent. The project
involves extending/rewriting Debian's divine project.
I've looked through the devel kernel tree and I was unable to find any
"hooks" for such a feature. I was under the impression that network cards
would generate a signal when the interface was down, but perhaps I am
wrong and each vendor deals with this in their own way if it can be
reported at all.
If anyone has any suggestions, I would greatly apprectiate them.
Otherwise, I fear I will have to fall back to something much less