This page lists the status of the evdev-specific ioctls in libevdev.

EVIOCGVERSION:: supported, see libevdev_get_driver_version()
EVIOCGID:: supported, see libevdev_get_id_product(), libevdev_get_id_vendor(), libevdev_get_id_bustype(), libevdev_get_id_version()
EVIOCGREP:: supported, see libevdev_get_event_value())
EVIOCSREP:: supported, see libevdev_enable_event_code()
EVIOCGKEYCODE:: currently not supported
EVIOCGKEYCODE:: currently not supported
EVIOCSKEYCODE:: currently not supported
EVIOCSKEYCODE:: currently not supported
EVIOCGNAME:: supported, see libevdev_get_name()
EVIOCGPHYS:: supported, see libevdev_get_phys()
EVIOCGUNIQ:: supported, see libevdev_get_uniq()
EVIOCGPROP:: supported, see libevdev_has_property()
EVIOCGMTSLOTS:: supported, see libevdev_get_num_slots(), libevdev_get_slot_value()
EVIOCGKEY:: supported, see libevdev_has_event_code(), libevdev_get_event_value()
EVIOCGLED:: supported, see libevdev_has_event_code(), libevdev_get_event_value()
EVIOCGSND:: currently not supported
EVIOCGSW:: supported, see libevdev_has_event_code(), libevdev_get_event_value()
EVIOCGBIT:: supported, see libevdev_has_event_code(), libevdev_get_event_value()
EVIOCGABS:: supported, see libevdev_has_event_code(), libevdev_get_event_value(), libevdev_get_abs_info()
EVIOCSABS:: supported, see libevdev_kernel_set_abs_info()
EVIOCSFF:: currently not supported
EVIOCRMFF:: currently not supported
EVIOCGEFFECTS:: currently not supported
EVIOCGRAB:: supported, see libevdev_grab()
EVIOCSCLOCKID:: supported, see libevdev_set_clock_id()
EVIOCREVOKE:: currently not supported, see http://lists.freedesktop.org/archives/input-tools/2014-January/000688.html