CONFIG_SERIAL_8250_NR_UARTS 74 drivers/tty/serial/8250/8250_core.c #define UART_NR CONFIG_SERIAL_8250_NR_UARTS CONFIG_SERIAL_8250_NR_UARTS 1234 drivers/tty/serial/8250/8250_core.c MODULE_PARM_DESC(nr_uarts, "Maximum number of UARTs supported. (1-" __MODULE_STRING(CONFIG_SERIAL_8250_NR_UARTS) ")");