Messages in this thread | | | Date | Tue, 29 Jul 2003 21:38:52 +0100 | From | John Bradford <> | Subject | Re: PATCH : LEDs - possibly the most pointless kernel subsystem ever |
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> > This patch adds an abstraction layer for programmable LED devices, > > hardware drivers for the Status LEDs found on some Intel PIIX4E based > > server hardware (notably the ISP1100 1U rackmount server) and LEDs wired > > to the parallel port data lines. > > I haven't had chance to test this yet, but I really like the idea - by > an amasing co-incidence, I was actually thinking about the possibility > of doing a parallel port connected front panel earlier today! > > Does anybody have any suggestions for recommended standard uses for > parallel port connected LEDs? > > Disk spinning up/disk ready > Root login active > > Any other suggestions?
Ah, I just thought, for debugging purposes we could have LEDs for:
* BKL taken * Servicing interrupt * Kernel stack usage > 2K
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