UART_CTS           74 drivers/usb/serial/cypress_m8.h #define UART_CTS	0x10	/* clear to send */
UART_CTS          148 drivers/usb/serial/pl2303.c #define UART_CTS			0x80
UART_CTS          137 drivers/usb/serial/spcp8x5.c #define UART_CTS			0x80