serial_icr_read 902 drivers/tty/serial/8250/8250_port.c id1 = serial_icr_read(up, UART_ID1); serial_icr_read 903 drivers/tty/serial/8250/8250_port.c id2 = serial_icr_read(up, UART_ID2); serial_icr_read 904 drivers/tty/serial/8250/8250_port.c id3 = serial_icr_read(up, UART_ID3); serial_icr_read 905 drivers/tty/serial/8250/8250_port.c rev = serial_icr_read(up, UART_REV);