* Add IS_PHONEDEV(xpd) macro * Reject dahdi_register_xpd()/dahdi_unregister_xpd() for non-PHONEDEV * Make sysfs 'offhook' attribute contain '\n' if empty (no channels) * Skip PHONEDEV related xbus_tick() parts -- we still want to process the end of it for the card_tick() calls. * Remove BUG_ON() for missing phoneops (also remove old duplicate test for XBUS_IS...) * Call XPD_STATE method only for PHONEDEV XPD's Signed-off-by: Oron Peled <oron@actcom.co.il> Acked-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com> git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9705 a0bf4364-ded3-4de4-8d8a-66a801d63aff