UART_FCR_R_TRIG_SHIFT 2869 drivers/tty/serial/8250/8250_port.c return (--i) << UART_FCR_R_TRIG_SHIFT; UART_FCR_R_TRIG_SHIFT 95 include/uapi/linux/serial_reg.h (((x) & UART_FCR_TRIGGER_MASK) >> UART_FCR_R_TRIG_SHIFT)