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    SubjectRe: [PATCH] ACPI / Battery: Return -ENODATA for unknown values in get_property()
    On Monday, October 25, 2010, Pavel Machek wrote:
    > Hi!
    > > That's why I suggested to use -ENODATA. :-)
    > >
    > > Still, if user space has problems with failing reads from the sysfs attributes,
    > > it may be better to simply put -1 in there. Patch is appended, please test.
    > I'd say that reporting -1 for unknown is ugly. You can have -1A
    > current easily (charging at 1A), and I've seen machines reporting <0
    > current -- when charging. Logical and well-defined.

    I posted a patch fixing that in a different way (makng the battery driver return
    -ENODEV instead of -ENODATA) in the meantime, which has been confirmed to work.


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