SERIAL_CRTSCTS     43 drivers/usb/serial/quatech2.c #define  SERIAL_CRTSCTS ((UART_MCR_RTS << 8) | UART_MSR_CTS)
SERIAL_CRTSCTS     33 drivers/usb/serial/ssu100.c #define  SERIAL_CRTSCTS ((UART_MCR_RTS << 8) | UART_MSR_CTS)