On Mon, 21 May 2018 10:33:58 +0200 Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx> wrote: > Hello Alan, > > On Sun, May 20, 2018 at 08:24:51PM +0100, Alan Cox wrote: > > > that is something I wouldn't care about. I think nobody will want to > > > determine the transfer rate from the emitted light. > > > > More of a problem is that if you know the baud rate and have a camera you > > can measure the number of bytes transmitted ? > > Do you really think this is a problem? Apart from not being reliable, if > you have concerns don't configure the tty trigger, make sure your > ethernet leds are off and nobody connects to the tty to read the > original data. I'm merely observing what it makes possible. Ethernet ones btw don't seem to let you read the frame length in general. I don't think it's an issue in normal use cases. Alan -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html