EC_LPC_ADDR_HOST_PACKET
ret = ec_lpc->write(ec_lpc, EC_LPC_ADDR_HOST_PACKET, ret, ec->dout);
ret = ec_lpc->read(ec_lpc, EC_LPC_ADDR_HOST_PACKET, sizeof(response),
ret = ec_lpc->read(ec_lpc, EC_LPC_ADDR_HOST_PACKET +