HCI_LINK_POLICY_ENABLE_ROLE_SWITCH
unit->hci_lmp_mask |= HCI_LINK_POLICY_ENABLE_ROLE_SWITCH;
if (unit->hci_link_policy & HCI_LINK_POLICY_ENABLE_ROLE_SWITCH)
if (opt_switch > 0) val |= HCI_LINK_POLICY_ENABLE_ROLE_SWITCH;
if (opt_switch < 0) val &= ~HCI_LINK_POLICY_ENABLE_ROLE_SWITCH;
if (val & HCI_LINK_POLICY_ENABLE_ROLE_SWITCH) tag("switch");