[Ftdi-usb-sio-devel] about XON/XOFF

[Tao J. <jin...@gm...>]

Dear all,

I have a question about serial software flow control.  Here is my
experiment setup.

PC < ---- > serial device

PC1 talks to serial device through minicom.

When I send a byte in minicom, the serial device toggle LED to
indicate the reception of new byte

When serial device receives up to 10 byte, serial device sends
XOFF(0x13) byte to PC.

I have already enabled software flow control in minicom, so I expect
that next time when I send another byte from minicom, the serial
device is NOT supposed to receive anything.  b/c the serial driver
received XOFF earlier.

But XOFF doesn't work for me.

My question is should my program takes care of XOFF?  or the serial
driver actually takes care of that automatically?

thanks a lot in advance!

jintao