UART01x_FR_CTS
if (delta & UART01x_FR_CTS)
uart_handle_cts_change(port, status & UART01x_FR_CTS);
if (status & UART01x_FR_CTS)
.fr_cts = UART01x_FR_CTS,
.fr_cts = UART01x_FR_CTS,
.fr_cts = UART01x_FR_CTS,
.fr_cts = UART01x_FR_CTS,
#define UART01x_FR_MODEM_ANY (UART01x_FR_DCD | UART01x_FR_DSR | UART01x_FR_CTS)