vhci_pHCI_cap
static int vhci_pHCI_cap(struct scsi_address *ap, char *cap, int val, int whom,
(void) vhci_pHCI_cap(ap, cap, val, tgtonly, NULL);
(void) vhci_pHCI_cap(&svp->svp_psd->sd_address,
(void) vhci_pHCI_cap(ap, "sector-size",