dev_dclose
dev_dclose(dp->d_rawdev, ap->a_oflags, ap->a_devtype, NULL);
error = dev_dclose(dp->d_rawdev, ap->a_fflag, ap->a_devtype, NULL);
error = dev_dclose(dp->d_rawdev, fflags, S_IFCHR, NULL);
dev_dclose(dp->d_rawdev, FREAD|FWRITE, S_IFCHR, NULL);
dev_dclose(dp->d_rawdev, FREAD, S_IFCHR, NULL);
dev_dclose(dp->d_rawdev, FWRITE, S_IFCHR, NULL);
dev_dclose(dev, FREAD, S_IFCHR, NULL);
error = dev_dclose(cn_dev, openflag,
int dev_dclose(cdev_t dev, int fflag, int devtype, struct file *fp);
error = dev_dclose(dev, ap->a_fflag, S_IFCHR, ap->a_fp);
error = dev_dclose(dev, ap->a_fflag, S_IFCHR, ap->a_fp);