On Thu, 09 Nov 2023, m.brock@xxxxxxxxxxxxx wrote: > Florian Eckert schreef op 2023-11-09 09:50: > > The serial tty interface also supports additional input signals, that > > can also be evaluated within this trigger. This change is adding the > > following additional input sources, which could be controlled > > via the '/sys/class/<leds>/' sysfs interface. > > > > Explanation: > > DCE = Data Communication Equipment (Modem) > > DTE = Data Terminal Equipment (Computer) > > > > - cts: > > DCE is ready to accept data from the DTE (CTS = Clear To Send). If > > the line state is detected, the LED is switched on. > > If set to 0 (default), the LED will not evaluate CTS. > > If set to 1, the LED will evaluate CTS. > > > > - dsr: > > DCE is ready to receive and send data (DSR = Data Set Ready). If the > > line state is detected, the LED is switched on. > > If set to 0 (default), the LED will not evaluate DSR. > > If set to 1, the LED will evaluate DSR. > > > > - dcd: > > DTE is receiving a carrier from the DCE (DCD = Data Carrier Detect). > > If the line state is detected, the LED is switched on. > > If set to 0 (default), the LED will not evaluate DCD. > > If set to 1, the LED will evaluate DCD. > > > > - rng: > > DCE has detected an incoming ring signal on the telephone line > > (RNG = Ring Indicator). If the line state is detected, the LED is > > switched on. > > If set to 0 (default), the LED will not evaluate RNG. > > If set to 1, the LED will evaluate RNG. > > > > Also add an invert flag on LED blink, so that the LED blinks in the > > correct order. > > > > * If one off the new enabled input signals are evaluatet as 'enabled', > > and data are transmitted, then the LED should first blink 'off' and > > then 'on' (invert). > > * If all the new enabled input signals are evaluatet as 'disabled', > > and data are transmitted, then the LED should first blink 'on' and > > then 'off'. > > > > Signed-off-by: Florian Eckert <fe@xxxxxxxxxx> > > --- > > .../ABI/testing/sysfs-class-led-trigger-tty | 40 ++++++++++ > > drivers/leds/trigger/ledtrig-tty.c | 77 ++++++++++++++++++- > > 2 files changed, 116 insertions(+), 1 deletion(-) [...] > Reviewed-by: Maarten Brock <m.brock@xxxxxxxxxxxxx> Please snip your replies. -- Lee Jones [李琼斯]
