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    SubjectRe: [PATCH][RFC] Kill off legacy power management stuff.
    Robert P. J. Day wrote:
    > On Tue, 17 Apr 2007, Bill Davidsen wrote:
    >
    >
    >> Rafael J. Wysocki wrote:
    >>
    >>> [appropriate CCs added]
    >>>
    >>> On Friday, 13 April 2007 02:33, Robert P. J. Day wrote:
    >>>
    >>>> just something i threw together, not in final form, but it represents
    >>>> tossing the legacy PM stuff. at the moment, the menuconfig entry for
    >>>> PM_LEGACY lists it as "DEPRECATED", while the help screen calls it
    >>>> "obsolete." that's a good sign that it's getting close to the time
    >>>> for it to go, and the removal is fairly straightforward, but there's
    >>>> no mention of its removal in the feature removal schedule file.
    >>>>
    >>> It's been like this for a long long time. I think you're right that it can
    >>> be
    >>> dropped, but I don't know the details (eg. why it hasn't been dropped yet).
    >>>
    >>>
    >> One reason was that there are (were?) a number of machines which only powered
    >> down properly using apm. It was discussed as part of shutting down after power
    >> failure when your UPS is running out of power.
    >>
    >
    > um ... what does APM have to do with legacy PM? two different issues,
    > no?
    >
    Since the patches are going into apm.c and apm was used for suspend and
    poweroff before ACPI was a feature of the hardware, I assume there's a
    relationship. As of 2.6.9 ACPI still couldn't power down one of my old
    boxes, it hasn't been updated since that time, so I can't say what later
    kernels will do.

    --
    bill davidsen <davidsen@tmr.com>
    CTO TMR Associates, Inc
    Doing interesting things with small computers since 1979

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