UDESCSUB_VS_FRAME_FRAME_BASED
UDESCSUB_VS_FRAME_FRAME_BASED)) {
((frm)->bDescriptorSubtype == UDESCSUB_VS_FRAME_FRAME_BASED) ? \
((frm)->bDescriptorSubtype == UDESCSUB_VS_FRAME_FRAME_BASED) ? \
((frm)->bDescriptorSubtype == UDESCSUB_VS_FRAME_FRAME_BASED) ? \