dbus_interface.xml.in

<!DOCTYPE node PUBLIC "-//freedesktop//DTD D-BUS Object Introspection 1.0//EN"
        "http://www.freedesktop.org/standards/dbus/1.0/introspect.dtd">
<node name="@dbus_path@">
    <interface name="@dbus_iface@">
        <!-- Signal sent when a button is pressed or released. -->
        <signal name="buttonEvent">
            <!-- The pressed or released button: ENTER, SELECT, USB_COPY. -->
            <arg name="button" type="s" direction="out"/>
            <!-- True if the button was pressed, false if it was released. -->
            <arg name="pressed" type="b" direction="out"/>
        </signal>

        <!-- Switches LCD backlight on or off. -->
        <method name="setLCDBacklight">
            <arg name="on" type="b" direction="in"/>
        </method>

        <!-- Writes a single line of text on the LCD display. -->
        <method name="writeLCD">
            <!-- Line index, 0 or 1. -->
            <arg name="line" type="i" direction="in"/>
            <!-- The line text. -->
            <arg name="text" type="s" direction="in"/>
        </method>

        <!-- Writes text on the LCD display. Supports newlines. -->
        <method name="writeLCD">
            <arg name="text" type="s" direction="in"/>
        </method>

        <!-- Switches an LED on or off. Available LED names:
             STATUS_GREEN, STATUS_RED, USB, DISK_1, DISK_2, DISK_3, DISK_4. -->
        <method name="setLED">
            <arg name="led" type="s" direction="in"/>
            <arg name="on" type="b" direction="in"/>
        </method>
    </interface>
</node>