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    Subject[PATCH] [0/2] acpiphp extension for 2.6.7
    After much discussion, dissection, rewriting and reading (documentation
    of course), I finally think this patch is ready to be included in the
    kernel. I have chosen to split it into 2 parts because really, that's
    what it is -- a patch to acpiphp that allows other modules to register
    attention LED callback functions and also a new module that does just
    that for the IBM ACPI systems. These patches were made against the
    2.6.7 kernel tree.

    01 - acpiphp-attention.patch

    This patch adds the ability to register callback functions with
    the acpiphp core to set and get the current attention LED
    status. The reason this is needed is because there is not set
    ACPI standard for how this is done so each hardware platform may
    implement it differently. To keep hardware specific code out of
    acpiphp, we allow other modules to register their code with it.

    02 - acpiphp_ibm-v1.0.1c.patch

    This patch adds the first driver that actually uses the callback
    function for attention LEDs that the acpiphp-attention patch
    adds. It searches the ACPI namespace for IBM hardware, sets up
    the callbacks and sets up a handler to read ACPI events and
    forward them on to /proc/acpi/event. It also exports an ACPI
    table that shows current hotplug status to userland.

    The two patches are to follow.


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