On Wed, May 08, 2013 at 11:18:07AM -0400, Peter Hurley wrote: > On 05/08/2013 09:16 AM, Wang YanQing wrote: > > On Tue, May 07, 2013 at 07:02:00PM -0700, Greg KH wrote: > >> What about Peter's comments on this patch? > >> > > Peter's comments will import policy, > > > > I means we should let userspace to decide whether > > and when to restart tty with the mechanism of TCXONC > > instead of restart tty accidental when make n_tty_set_termios > > call. > > There would be no accidental restart. Userspace is specifically > disabling user-controlled output flow control by clearing > IXON in termios. Userspace is _expecting_ a 'started' tty. > > If you insist that this must be controllable from userspace, > then that is already possible: > > tcflow(fd, TCOOFF); > tcflow(fd, TCOON);
Indeed you can't do what you said with TCOOFF and TCOON if you read the codes, that's what this patch fix. Thanks. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
