<node name="/" xmlns:tp="http://telepathy.freedesktop.org/wiki/DbusSpec#extensions-v0">
  <interface name="org.chromium.tpmd.nvram">
    <method name="Allocate">
      <tp:docstring>
        Allocates an nvram at the specified index of the specified size. If
        there is a n existing nvram in that slot, fails.
      </tp:docstring>
      <arg name="index" type="u" direction="in">
        <tp:docstring>
          Index at which to allocate the nvram object on the TPM.
        </tp:docstring>
      </arg>
      <arg name="size" type="u" direction="in">
        <tp:docstring>
          Length of the allocated nvram, in bytes.
        </tp:docstring>
      </arg>
      <arg name="options" type="a{sv}" direction="in">
        <tp:docstring>
          Extra options for this NVRAM area. Supported keys: "LockOnce", with a
          boolean value.
        </tp:docstring>
      </arg>
    </method>
    <method name="Free">
      <tp:docstring>
        Frees this nvram region, destroying all data inside it.
      </tp:docstring>
      <arg name="index" type="u" direction="in">
        <tp:docstring>
          Index of this nvram region.
        </tp:docstring>
      </arg>
    </method>
    <method name="Write">
      <tp:docstring>
        Writes the supplied bytes to this nvram region. Fails if the region is
        not writeable or too few or too many bytes are supplied.
      </tp:docstring>
      <arg name="index" type="u" direction="in">
        <tp:docstring>
          Index of this nvram region.
        </tp:docstring>
      </arg>
      <arg name="bytes" type="ay" direction="in">
        <tp:docstring>
          Bytes to write.
        </tp:docstring>
      </arg>
    </method>
    <method name="Read">
      <tp:docstring>
        Reads bytes from this nvram region. Fails if the region is not allocated
        or written.
      </tp:docstring>
      <arg name="index" type="u" direction="in">
        <tp:docstring>
          Index of this nvram region.
        </tp:docstring>
      </arg>
      <arg name="bytes" type="ay" direction="out">
        <tp:docstring>
          The bytes read from this nvram region.
        </tp:docstring>
      </arg>
    </method>
    <method name="IsDefined">
      <tp:docstring>
        Has this nvram region been written?
      </tp:docstring>
      <arg name="index" type="u" direction="in">
        <tp:docstring>
          Index of this nvram region.
        </tp:docstring>
      </arg>
      <arg name="defined" type="b" direction="out">
        <tp:docstring>
          True if this region is defined.
        </tp:docstring>
      </arg>
    </method>
    <method name="IsLocked">
      <tp:docstring>
        Has this nvram region been locked? (i.e., can it no longer be written?)
      </tp:docstring>
      <arg name="index" type="u" direction="in">
        <tp:docstring>
          Index of this nvram region.
        </tp:docstring>
      </arg>
      <arg name="locked" type="b" direction="out">
        <tp:docstring>
          True if this region is locked.
        </tp:docstring>
      </arg>
    </method>
    <method name="Size">
      <tp:docstring>
        The size of this nvram region, in bytes.
      </tp:docstring>
      <arg name="index" type="u" direction="in">
        <tp:docstring>
          Index of this nvram region.
        </tp:docstring>
      </arg>
      <arg name="size" type="u" direction="out">
        <tp:docstring>
          Size of this nvram region.
        </tp:docstring>
      </arg>
    </method>
  </interface>
</node>