hmm_is_coherent_type
if (hmm_is_coherent_type(variant->device_number)) {
if (self->fd < 0 && hmm_is_coherent_type(variant->device_number))
if (!hmm_is_coherent_type(variant->device_number0)) {
if (self->fd0 < 0 && hmm_is_coherent_type(variant->device_number0))
if (hmm_is_coherent_type(variant->device_number)) {
if (!hmm_is_coherent_type(variant->device_number)) {