devfs_get_cdevpriv
err = devfs_get_cdevpriv(ap->a_fp, (void **)&cpd);
err = devfs_get_cdevpriv(ap->a_fp, (void **)&cpd);
err = devfs_get_cdevpriv(ap->a_fp, (void **)&cpd);
err = devfs_get_cdevpriv(ap->a_fp, (void **)&cpd);
ret = devfs_get_cdevpriv(ap->a_fp, (void **)&priv);
ret = devfs_get_cdevpriv(ap->a_fp, (void **)&priv);
error = devfs_get_cdevpriv(fp, (void **)&pcs);
error = devfs_get_cdevpriv(fp, (void **)&pcc);
ret = devfs_get_cdevpriv(ap->a_fp, (void **)&client);
ret = devfs_get_cdevpriv(ap->a_fp, (void **)&client);
ret = devfs_get_cdevpriv(ap->a_fp, (void **)&client);
ret = devfs_get_cdevpriv(ap->a_fp, (void **)&client);
if (devfs_get_cdevpriv(fp, (void **)&dev))
error = devfs_get_cdevpriv(fp, (void **)&dev);
devfs_get_cdevpriv(fp, (void **)&owner);
error = devfs_get_cdevpriv(ap->a_fp, (void **)&priv);
if (devfs_get_cdevpriv(NULL, (void **)&priv) != 0 || priv == NULL)
error = devfs_get_cdevpriv(ap->a_fp, (void**)&priv);
int devfs_get_cdevpriv(struct file *fp, void **datap);
error = devfs_get_cdevpriv(ap->a_fp, (void**)&fmp);
error = devfs_get_cdevpriv(ap->a_fp, (void**)&fmp);
error = devfs_get_cdevpriv(ap->a_fp, (void**)&fmp);
error = devfs_get_cdevpriv(ap->a_fp, (void**)&fmp);
error = devfs_get_cdevpriv(file, (void**)&fmp);