Messages in this thread | | | Date | Fri, 30 Sep 2011 10:47:07 +0100 | From | Alan Cox <> | Subject | Re: IIO (+ more general?) Error condition handling (e.g. wire fell out errors) |
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> 3) Consider these out of band (from the out of band event data) > and look at other options for reporting them.
Treat it like a socket/pipe perhaps - if it "goes down" then report it as having hung up and deliver a SIGPIPE or similar and with an appropriate error code for those catching it (-EIO ?)
That generally gets noticed.
> Is there anything general out there for reporting hardware failures > that would be appropriate? Sometime these conditions are the sort > of thing that should cause a siren to go off. > They might be sensor failure
There are two things here - one is making sure the app notices (where we have equivalent handling in other interfaces) the other is what to do about it. We don't have a general framework for reporting system component failure. That's something that ought to get fixed generally to report everything from "that new nasty smell was formerly your hard disk" to a sensor fail.
> (p.s. I hope no one is using the current driver for trains, though > that might explain British trains...)
Tssh... there is Linux on UK trains, but it's usually driving annoying announcement/video systems.
Alan
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