static inline int serial_getc_dev(unsigned int dev_index) { return _serial_getc(dev_index); }
int serial_getc(void) { return _serial_getc(CONFIG_CONS_INDEX); }
int serial_getc(void) { return _serial_getc(gd->cur_serial_dev); }
int serial_stub_getc(struct stdio_dev *sdev) { return _serial_getc(sdev->priv); }
int serial_getc(void) { return _serial_getc(UART_NR); }