[Sugar-devel] Dbus signal when ebook switch is activated

Peter Robinson pbrobinson at gmail.com
Thu Oct 14 05:38:02 EDT 2010

On Thu, Oct 14, 2010 at 9:27 AM, Sascha Silbe
<sascha-ml-reply-to-2010-3 at silbe.org> wrote:
> Excerpts from Gonzalo Odiard's message of Wed Oct 13 17:33:50 +0200 2010:
>> bus.add_signal_receiver(my_func,
>>                         dbus_interface="org.freedesktop.Hal.Device",
>>                         signal_name="PropertyModified")
> HAL has been deprecated [1] and will not be available anymore at some
> point in the future, so I advise against relying on it.
> I don't know what the best way to listen to an ebook switch is. acpid
> might be worth a look:

Most distros don't use acpid either

>>> In addition to rule files, acpid also accepts connections on a UNIX
>>> domain socket (/var/run/acpid.socket by default). Any application may
>>> connect to this socket. Once connected, acpid will send the text of all
>>> ACPI events to the client. The client has the responsibility of
>>> filtering for messages about which it cares. acpid will not close the
>>> client socket except in the case of a SIGHUP or acpid exiting.
> Asking for advice on devkit-devel [2] might be a good idea as well.
> UPower already has a LidIsClosed property (and sends property change
> notifications [4]) so it might be straightforward to add support for
> ebook switches.

I think this should be an input event, I think in most cases this is
how input from lid switches and the like are handled across most
things now.


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