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    SubjectRe: [ACPI] PATCH-ACPI based CPU hotplug[2/6]-ACPI Eject interface support
    On Mon, Sep 20, 2004 at 08:20:05PM -0500, Dmitry Torokhov wrote:
    > On Monday 20 September 2004 07:52 pm, Alex Williamson wrote:
    > > On Mon, 2004-09-20 at 18:12 -0500, Dmitry Torokhov wrote:
    > > >
    > > > Hi Anil,
    > > >
    > > > I obviously failed to deliver my idea :) I meant that I would like add eject
    > > > attribute (along with maybe status, hid and some others) to kobjects in
    > > > /sys/firmware/acpi tree.
    > > >
    > >
    > > Dmitry,
    > >
    > > See the patch I just posted to acpi-devel and lkml (Subject:
    > > [PATCH/RFC] exposing ACPI objects in sysfs). It exposes acpi objects as
    > > you describe. Something simple like:
    > >
    > > # cat /sys/firmware/acpi/namespace/ACPI/_SB/LSB0/_EJ0
    > >
    > > Will call the _EJ0 method on the ACPI device. You can evaluate eject
    > > dependencies using the _EJD method.
    > >
    > > Alex
    > >
    >
    > Alex,
    >
    > While I think that your patch is very important and should be included (maybe
    > if not as is if somebody has some objections but in some other form) I see it
    > more like developer's tool. I imagined status, HID, eject etc. attributes to
    > be sanitized interface to kernel's data, not necessarily causing re-evaluation.
    >
    > So it could be like this:
    >
    > /sys/firmware/acpi/namespace/ACPI/_SB/LSB0/status
    > /sys/firmware/acpi/namespace/ACPI/_SB/LSB0/removable
    > /sys/firmware/acpi/namespace/ACPI/_SB/LSB0/lockable
    > ..
    > /sys/firmware/acpi/namespace/ACPI/_SB/LSB0/eject

    Ha..Now I got it and what you are saying sounds right
    thing to do. I will invistigate more and will get back to
    the mailing list hopefully with the patch:)

    >
    > And your raw access to the ACPI methods could reside under raw:
    >
    > /sys/firmware/acpi/namespace/ACPI/_SB/LSB0/raw/_STA
    > /sys/firmware/acpi/namespace/ACPI/_SB/LSB0/raw/_RNV
    > /sys/firmware/acpi/namespace/ACPI/_SB/LSB0/raw/_LCK
    > ..
    > /sys/firmware/acpi/namespace/ACPI/_SB/LSB0/raw/_EJ0
    >
    > --
    > Dmitry
    -
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