xref: /linux/Documentation/ABI/testing/sysfs-class-led-trigger-tty (revision 79790b6818e96c58fe2bffee1b418c16e64e7b80)
1*96d947d4SFlorian EckertWhat:		/sys/class/leds/<tty_led>/ttyname
2fd4a641aSUwe Kleine-KönigDate:		Dec 2020
3fd4a641aSUwe Kleine-KönigKernelVersion:	5.10
4fd4a641aSUwe Kleine-KönigContact:	linux-leds@vger.kernel.org
5fd4a641aSUwe Kleine-KönigDescription:
6fd4a641aSUwe Kleine-König		Specifies the tty device name of the triggering tty
75b755ca6SFlorian Eckert
8*96d947d4SFlorian EckertWhat:		/sys/class/leds/<tty_led>/rx
95b755ca6SFlorian EckertDate:		February 2024
105b755ca6SFlorian EckertKernelVersion:	6.8
115b755ca6SFlorian EckertDescription:
125b755ca6SFlorian Eckert		Signal reception (rx) of data on the named tty device.
135b755ca6SFlorian Eckert		If set to 0, the LED will not blink on reception.
145b755ca6SFlorian Eckert		If set to 1 (default), the LED will blink on reception.
155b755ca6SFlorian Eckert
16*96d947d4SFlorian EckertWhat:		/sys/class/leds/<tty_led>/tx
175b755ca6SFlorian EckertDate:		February 2024
185b755ca6SFlorian EckertKernelVersion:	6.8
195b755ca6SFlorian EckertDescription:
205b755ca6SFlorian Eckert		Signal transmission (tx) of data on the named tty device.
215b755ca6SFlorian Eckert		If set to 0, the LED will not blink on transmission.
225b755ca6SFlorian Eckert		If set to 1 (default), the LED will blink on transmission.
236dec6598SFlorian Eckert
24*96d947d4SFlorian EckertWhat:		/sys/class/leds/<tty_led>/cts
256dec6598SFlorian EckertDate:		February 2024
266dec6598SFlorian EckertKernelVersion:	6.8
276dec6598SFlorian EckertDescription:
286dec6598SFlorian Eckert		CTS = Clear To Send
296dec6598SFlorian Eckert		DCE is ready to accept data from the DTE.
306dec6598SFlorian Eckert		If the line state is detected, the LED is switched on.
316dec6598SFlorian Eckert		If set to 0 (default), the LED will not evaluate CTS.
326dec6598SFlorian Eckert		If set to 1, the LED will evaluate CTS.
336dec6598SFlorian Eckert
34*96d947d4SFlorian EckertWhat:		/sys/class/leds/<tty_led>/dsr
356dec6598SFlorian EckertDate:		February 2024
366dec6598SFlorian EckertKernelVersion:	6.8
376dec6598SFlorian EckertDescription:
386dec6598SFlorian Eckert		DSR = Data Set Ready
396dec6598SFlorian Eckert		DCE is ready to receive and send data.
406dec6598SFlorian Eckert		If the line state is detected, the LED is switched on.
416dec6598SFlorian Eckert		If set to 0 (default), the LED will not evaluate DSR.
426dec6598SFlorian Eckert		If set to 1, the LED will evaluate DSR.
436dec6598SFlorian Eckert
44*96d947d4SFlorian EckertWhat:		/sys/class/leds/<tty_led>/dcd
456dec6598SFlorian EckertDate:		February 2024
466dec6598SFlorian EckertKernelVersion:	6.8
476dec6598SFlorian EckertDescription:
486dec6598SFlorian Eckert		DCD = Data Carrier Detect
496dec6598SFlorian Eckert		DTE is receiving a carrier from the DCE.
506dec6598SFlorian Eckert		If the line state is detected, the LED is switched on.
516dec6598SFlorian Eckert		If set to 0 (default), the LED will not evaluate CAR (DCD).
526dec6598SFlorian Eckert		If set to 1, the LED will evaluate CAR (DCD).
536dec6598SFlorian Eckert
54*96d947d4SFlorian EckertWhat:		/sys/class/leds/<tty_led>/rng
556dec6598SFlorian EckertDate:		February 2024
566dec6598SFlorian EckertKernelVersion:	6.8
576dec6598SFlorian EckertDescription:
586dec6598SFlorian Eckert		RNG = Ring Indicator
596dec6598SFlorian Eckert		DCE has detected an incoming ring signal on the telephone
606dec6598SFlorian Eckert		line. If the line state is detected, the LED is switched on.
616dec6598SFlorian Eckert		If set to 0 (default), the LED will not evaluate RNG.
626dec6598SFlorian Eckert		If set to 1, the LED will evaluate RNG.
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