1 What: /sys/class/leds/<tty_led>/ttyn 1 What: /sys/class/leds/<tty_led>/ttyname
2 Date: Dec 2020 2 Date: Dec 2020
3 KernelVersion: 5.10 3 KernelVersion: 5.10
4 Contact: linux-leds@vger.kernel.org 4 Contact: linux-leds@vger.kernel.org
5 Description: 5 Description:
6 Specifies the tty device name 6 Specifies the tty device name of the triggering tty
7 7
8 What: /sys/class/leds/<tty_led>/rx 8 What: /sys/class/leds/<tty_led>/rx
9 Date: February 2024 9 Date: February 2024
10 KernelVersion: 6.8 10 KernelVersion: 6.8
11 Description: 11 Description:
12 Signal reception (rx) of data 12 Signal reception (rx) of data on the named tty device.
13 If set to 0, the LED will not 13 If set to 0, the LED will not blink on reception.
14 If set to 1 (default), the LED 14 If set to 1 (default), the LED will blink on reception.
15 15
16 What: /sys/class/leds/<tty_led>/tx 16 What: /sys/class/leds/<tty_led>/tx
17 Date: February 2024 17 Date: February 2024
18 KernelVersion: 6.8 18 KernelVersion: 6.8
19 Description: 19 Description:
20 Signal transmission (tx) of da 20 Signal transmission (tx) of data on the named tty device.
21 If set to 0, the LED will not 21 If set to 0, the LED will not blink on transmission.
22 If set to 1 (default), the LED 22 If set to 1 (default), the LED will blink on transmission.
23 23
24 What: /sys/class/leds/<tty_led>/cts 24 What: /sys/class/leds/<tty_led>/cts
25 Date: February 2024 25 Date: February 2024
26 KernelVersion: 6.8 26 KernelVersion: 6.8
27 Description: 27 Description:
28 CTS = Clear To Send 28 CTS = Clear To Send
29 DCE is ready to accept data fr 29 DCE is ready to accept data from the DTE.
30 If the line state is detected, 30 If the line state is detected, the LED is switched on.
31 If set to 0 (default), the LED 31 If set to 0 (default), the LED will not evaluate CTS.
32 If set to 1, the LED will eval 32 If set to 1, the LED will evaluate CTS.
33 33
34 What: /sys/class/leds/<tty_led>/dsr 34 What: /sys/class/leds/<tty_led>/dsr
35 Date: February 2024 35 Date: February 2024
36 KernelVersion: 6.8 36 KernelVersion: 6.8
37 Description: 37 Description:
38 DSR = Data Set Ready 38 DSR = Data Set Ready
39 DCE is ready to receive and se 39 DCE is ready to receive and send data.
40 If the line state is detected, 40 If the line state is detected, the LED is switched on.
41 If set to 0 (default), the LED 41 If set to 0 (default), the LED will not evaluate DSR.
42 If set to 1, the LED will eval 42 If set to 1, the LED will evaluate DSR.
43 43
44 What: /sys/class/leds/<tty_led>/dcd 44 What: /sys/class/leds/<tty_led>/dcd
45 Date: February 2024 45 Date: February 2024
46 KernelVersion: 6.8 46 KernelVersion: 6.8
47 Description: 47 Description:
48 DCD = Data Carrier Detect 48 DCD = Data Carrier Detect
49 DTE is receiving a carrier fro 49 DTE is receiving a carrier from the DCE.
50 If the line state is detected, 50 If the line state is detected, the LED is switched on.
51 If set to 0 (default), the LED 51 If set to 0 (default), the LED will not evaluate CAR (DCD).
52 If set to 1, the LED will eval 52 If set to 1, the LED will evaluate CAR (DCD).
53 53
54 What: /sys/class/leds/<tty_led>/rng 54 What: /sys/class/leds/<tty_led>/rng
55 Date: February 2024 55 Date: February 2024
56 KernelVersion: 6.8 56 KernelVersion: 6.8
57 Description: 57 Description:
58 RNG = Ring Indicator 58 RNG = Ring Indicator
59 DCE has detected an incoming r 59 DCE has detected an incoming ring signal on the telephone
60 line. If the line state is det 60 line. If the line state is detected, the LED is switched on.
61 If set to 0 (default), the LED 61 If set to 0 (default), the LED will not evaluate RNG.
62 If set to 1, the LED will eval 62 If set to 1, the LED will evaluate RNG.
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