isp_find_xs
xs = isp_find_xs(isp, sp->req_handle);
ptr = isp_find_xs(isp, hdl);
ccb = isp_find_xs(isp, handle);
xs = isp_find_xs(isp, handle);
void *isp_find_xs(ispsoftc_t *, uint32_t);
xs = isp_find_xs(isp, ct->ct_syshandle);