Antonino Ingargiola wrote: > Nope. In python I use the flushInput() method of the serial object > defined by the pyserial library[0]. The method does just this system > call: > > termios.tcflush(self.fd, TERMIOS.TCIFLUSH) > > that I think is correct.
There is intermediate buffering between the driver and the line discipline called the tty flip buffer. receive data flow: driver --> tty flip --> line discipline --> application When you flush input, the line disciplines flush_buffer() method is called to clear any data residing the in the line discipline. This does not affect the tty flip buffer or hardware receive FIFOs. I suspect the biggest problem is the data in the tty flip buffer. A new function to flush the tty flip buffer needs to be added and then called from tty_io.c:tty_ldisc_flush(). Then a call to tcflush(TCIFLUSH) will clear both buffers. This still would not clear any data in the hardware receive FIFOs. -- Paul Fulghum Microgate Systems, Ltd. ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Linux-usb-users@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
