How to change the name of controllers?

[PhtevenTheSecond]

I have 5 controllers total.
4 of them are PS4 controllers and when they connect, they all have similar names.

I was looking for a way to change the name so that i can have an easier time changing their order if needed.

i used meleu's joystrick library linked below :

https://github.com/meleu/RetroPie-joystick-selection

i followed the installation and seems to work ok.

then i found a thread linked below:
https://retropie.org.uk/forum/topic/6624/change-controller-name

from my understanding, adding a variable input_device_display_name
in the file /opt/retropie/configs/all/retroarch-joypads "controller name.cfg"

should allow you to set the name but it didn't work .

i also changed it in the new location mentioned by the last user /opt/retropie/configs/all/retroarch/autoconfig/name-of-your-controller.cfg

didn't seem to work either.

the name remains the same as the file name. in this case, it's Logitech Logitech Cordless RumblePad 2

Here is the file for the controller im testing things with. Its a logitech wireless controller.

input_device = "Logitech Logitech Cordless RumblePad 2"
input_device_display_name = "Logitech Controller"
input_driver = "udev"
input_enable_hotkey_btn = "8"
input_r3_btn = "11"
input_r3_btn_label = "Right Analog Button"
input_r_y_minus_axis = "-3"
input_r_y_minus_axis_label = "Right Analog Up"
input_l_btn = "4"
input_l_btn_label = "LB"
input_load_state_btn = "4"
input_r_y_plus_axis = "+3"
input_r_y_plus_axis_label = "Right Analog Down"
input_up_axis = "-1"
input_left_axis = "-0"
input_state_slot_decrease_axis = "-0"
input_select_btn = "8"
input_select_btn_label = "Back"
input_r2_btn = "7"
input_r2_btn_label = "RT"
input_r_x_minus_axis = "-2"
input_r_x_minus_axis_label = "Right Analog Left"
input_l_y_plus_btn = "h0down"
input_l_x_plus_btn = "h0right"
input_right_axis = "+0"
input_state_slot_increase_axis = "+0"
input_l2_btn = "6"
input_l2_btn_label = "LT"
input_l_x_minus_btn = "h0left"
input_r_x_plus_axis = "+2"
input_r_x_plus_axis_label = "Right Analog Right"
input_l3_btn = "10"
input_l3_btn_label = "Left Analog Button"
input_r_btn = "5"
input_r_btn_label = "RB"
input_save_state_btn = "5"
input_l_y_minus_btn = "h0up"
input_y_btn = "0"
input_y_btn_label = "X"
input_x_btn = "3"
input_x_btn_label = "Y"
input_menu_toggle_btn = "3"
input_down_axis = "+1"
input_start_btn = "9"
input_start_btn_label = "Start"
input_exit_emulator_btn = "9"
input_b_btn = "1"
input_b_btn_label = "A"
input_reset_btn = "1"
input_a_btn = "2"
input_a_btn_label = "B"

[mitu]

You can't change the name of the controllers, at least not the ones that show up in the selection script. They come from the OS and cannot be controlled from userspace. The input_device_display_name option is useful just inside RetroArch (shows just a friendly name for the device), so that won't help in the selection script.