Keypad driver does not input character with input_report_key()

I am trying to create Linux input device driver and to test things I took at existing [gpio-matrix-keypad](https://elixir.bootlin.com/linux/latest/source/drivers/input/keyboard/matrix_keypad.c#L158) driver. Using print I know that input_report_key() is called with correct keycode, but it doesn't put a correct character under the cursor.

-c
pr_info("Print: %d\n", keycodes[code]);
input_report_key(input_dev, keycodes[code], new_state[col] & (1 << row));

Also I work with BeagleBone Black using minicom. It seems that kernel is built with required for input options enabled, e.g. CONFIG_INPUT and CONFIG_INPUT_KEYBOARD.