Quote:
Maybe a line in both SaveAux and RestoreSrc to check "if the previous state and the future state are the same, do nothing" will do it?


That line is already there:Code:

static void
switch_to_src (int from_src, int to_src)
{
        if (from_src != to_src) {
                unsigned int button = 0;
                switch (to_src) {
                        case INPUT_AUX:
                                if (from_src != INPUT_PCM) {
                                        if (!kenwood_disabled) {
                                                button = IR_KW_TAPE_PRESSED;
                                                break;
                                        }
                                        hijack_enq_button_pair(IR_RIO_SOURCE_PRESSED);
                                }
                                // fall thru
                        case INPUT_PCM:
                                button = IR_RIO_SOURCE_PRESSED;
                                break;

                        case INPUT_RADIO_AM:
                                if (from_src != INPUT_RADIO_FM)
                                        hijack_enq_button_pair(IR_RIO_TUNER_PRESSED);
                                // fall thru
                        case INPUT_RADIO_FM:
                                button = IR_RIO_TUNER_PRESSED;
                                break;
                }
                if (button)
                        hijack_enq_button_pair(button);
        }
}