UDESCSUB_VS_FRAME_FRAME_BASED
desc->bDescriptorSubtype == UDESCSUB_VS_FRAME_FRAME_BASED)) {
case 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) ? \