NVIF_IOCTL_V0_MTHD
case NVIF_IOCTL_V0_MTHD : ret = nouveau_abi16_ioctl_mthd (abi16, ioctl, argc); break;
args->i.type = NVIF_IOCTL_V0_MTHD;
args->i.type = NVIF_IOCTL_V0_MTHD;
args->ioctl.type = NVIF_IOCTL_V0_MTHD;