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. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
