193c9e59a8
XPP devices have implicit support for device registration and unregistration. Even though it is only used for the legacy (non-hotplug) configuration case, we still prefer to make it explicit. This attribute would later allow a simpler implementation of the user space (xpp-specific) tool dahdi_registration. Signed-off-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>