smb_iod_request
return smb_iod_request(vcp->vc_iod, SMBIOD_EV_CONNECT | SMBIOD_EV_SYNC, NULL);
smb_iod_request(vcp->vc_iod, SMBIOD_EV_DISCONNECT |
int smb_iod_request(struct smbiod *iod, int event, void *ident);
error = smb_iod_request(vcp->vc_iod, SMBIOD_EV_CONNECT | SMBIOD_EV_SYNC, NULL);
smb_iod_request(iod, SMBIOD_EV_SHUTDOWN | SMBIOD_EV_SYNC, NULL);
error = smb_iod_request(rqp->sr_vc->vc_iod,
error = smb_iod_request(vcp->vc_iod, SMBIOD_EV_NEWRQ, NULL);