Well this is an interesting one I tried setting this input a few times and the triggers werent updating right. After i deleted (reset/clear the inputs through emulation station) it worked. Something must have been amiss somewhere.
I can see whats going on with the hotkeys in the list now it looks right.
ps the system(raspian) was up to date not sure if it was some binary update that fixed it.
If anyone is experiencing problems with xbox360 controllers update from binary's (always do the system as well). Clear your inputs through retropie setup and reboot and set your controller up and the jobs a good one. My triggers wouldn't set right they where double/tripple pressing without resetting/clearing the input first hope this helps anyone with the same issue.
input_a_btn = "1"
input_b_btn = "0"
input_device = "Xbox 360 Wireless Receiver"
input_down_btn = "16"
input_driver = "udev"
input_enable_hotkey_btn = "8"
input_exit_emulator_btn = "9"
input_l2_btn = "6"
input_l3_btn = "11"
input_l_btn = "4"
input_l_x_minus_axis = "-0"
input_l_x_plus_axis = "+0"
input_l_y_minus_axis = "-1"
input_l_y_plus_axis = "+1"
input_left_btn = "13"
input_load_state_btn = "4"
input_menu_toggle_btn = "3"
input_r2_btn = "7"
input_r3_btn = "12"
input_r_btn = "5"
input_r_x_minus_axis = "-2"
input_r_x_plus_axis = "+2"
input_r_y_minus_axis = "-3"
input_r_y_plus_axis = "+3"
input_reset_btn = "0"
input_right_btn = "14"
input_save_state_btn = "5"
input_select_btn = "8"
input_start_btn = "9"
input_state_slot_decrease_btn = "13"
input_state_slot_increase_btn = "14"
input_up_btn = "15"
input_x_btn = "3"
input_y_btn = "2"