Identify input ID

Question

Guys, a help, I think I’m no longer able to confirm where I’m going wrong.

It has a form with 4 fields (item, description, unit and quantity) and a button to add more lines if you want, I use the code below to add new lines;

$(".adicionarCampo").click(function () {
novoCampo = $("tr.linhas:first").clone();
novoCampo.find("input").val("");
novoCampo.insertAfter("tr.linhas:last");
removeCampo();
});

This is the button to add more lines

<input type="button" name="Adicionar" id="Adicionar" class="adicionarCampo" value="+"> 

The user enters an item and the description field auto-populated with the code below.

function update(cod_atividade){
$.post("../../scripts/codigos_atividades.php", {cod_atividade:cod_atividade}, function(retorno){

dados = retorno.split("/");
 $('#descricao').val(dados[5]);
 });
}

Take the input ID with name description, let it read only and the above script puts the description information as per the item

<input name="descricao[]" type="text" required="required" class="descricao" id="descricao" size="40" maxlength="255" readonly="readonly" />

The problem is that if the user adds a new field(line) and puts an item, the description of this new item changes only in the first input, if he adds 10 fields, he keeps changing only in the first input, and not in that respective input.

I know that the ID is unique and in this case it really changes the first line, my problem is that I do not know how to make the script that puts the description identify which id is now without affecting those that have already been made.

I’ve tried making the id field with the brackets at the end but it doesn’t work.

<input name="descricao[]" type="text" required="required" class="descricao" id="descricao[]" size="40" maxlength="255" readonly="readonly" />

I would like an idea of how to do it. I appreciate this now.

EDIT:

For you to understand what happens.

I added new lines and put some item in the first line. Item G.10.05.005.095 is Camera

Then I clicked on add new lines (in yellow) and insert another item any F.30.70.005.010 is Key Machine. Instead of the item below adding the description in his line, he changes the top line.