xref: /linux/Documentation/ABI/testing/sysfs-class-led-trigger-netdev (revision 981368e1440b76f68b1ac8f5fb14e739f80ecc4e)
1What:		/sys/class/leds/<led>/device_name
2Date:		Dec 2017
3KernelVersion:	4.16
4Contact:	linux-leds@vger.kernel.org
5Description:
6		Specifies the network device name to monitor.
7
8What:		/sys/class/leds/<led>/interval
9Date:		Dec 2017
10KernelVersion:	4.16
11Contact:	linux-leds@vger.kernel.org
12Description:
13		Specifies the duration of the LED blink in milliseconds.
14		Defaults to 50 ms.
15
16		When offloaded is true, the interval value MUST be set to the
17		default value and cannot be changed.
18		Trying to set any value in this specific mode will return
19		an EINVAL error.
20
21What:		/sys/class/leds/<led>/link
22Date:		Dec 2017
23KernelVersion:	4.16
24Contact:	linux-leds@vger.kernel.org
25Description:
26		Signal the link state of the named network device.
27
28		If set to 0 (default), the LED's normal state is off.
29
30		If set to 1, the LED's normal state reflects the link state
31		of the named network device.
32		Setting this value also immediately changes the LED state.
33
34
35What:		/sys/class/leds/<led>/tx
36Date:		Dec 2017
37KernelVersion:	4.16
38Contact:	linux-leds@vger.kernel.org
39Description:
40		Signal transmission of data on the named network device.
41
42		If set to 0 (default), the LED will not blink on transmission.
43
44		If set to 1, the LED will blink for the milliseconds specified
45		in interval to signal transmission.
46
47		When offloaded is true, the blink interval is controlled by
48		hardware and won't reflect the value set in interval.
49
50What:		/sys/class/leds/<led>/rx
51Date:		Dec 2017
52KernelVersion:	4.16
53Contact:	linux-leds@vger.kernel.org
54Description:
55		Signal reception of data on the named network device.
56
57		If set to 0 (default), the LED will not blink on reception.
58
59		If set to 1, the LED will blink for the milliseconds specified
60		in interval to signal reception.
61
62		When offloaded is true, the blink interval is controlled by
63		hardware and won't reflect the value set in interval.
64
65What:		/sys/class/leds/<led>/offloaded
66Date:		Jun 2023
67KernelVersion:	6.5
68Contact:	linux-leds@vger.kernel.org
69Description:
70		Communicate whether the LED trigger modes are offloaded to
71		hardware or whether software fallback is used.
72
73		If 0, the LED is using software fallback to blink.
74
75		If 1, the LED blinking in requested mode is offloaded to
76		hardware.
77
78What:		/sys/class/leds/<led>/link_10
79Date:		Jun 2023
80KernelVersion:	6.5
81Contact:	linux-leds@vger.kernel.org
82Description:
83		Signal the link speed state of 10Mbps of the named network device.
84
85		If set to 0 (default), the LED's normal state is off.
86
87		If set to 1, the LED's normal state reflects the link state
88		speed of 10MBps of the named network device.
89		Setting this value also immediately changes the LED state.
90
91What:		/sys/class/leds/<led>/link_100
92Date:		Jun 2023
93KernelVersion:	6.5
94Contact:	linux-leds@vger.kernel.org
95Description:
96		Signal the link speed state of 100Mbps of the named network device.
97
98		If set to 0 (default), the LED's normal state is off.
99
100		If set to 1, the LED's normal state reflects the link state
101		speed of 100Mbps of the named network device.
102		Setting this value also immediately changes the LED state.
103
104What:		/sys/class/leds/<led>/link_1000
105Date:		Jun 2023
106KernelVersion:	6.5
107Contact:	linux-leds@vger.kernel.org
108Description:
109		Signal the link speed state of 1000Mbps of the named network device.
110
111		If set to 0 (default), the LED's normal state is off.
112
113		If set to 1, the LED's normal state reflects the link state
114		speed of 1000Mbps of the named network device.
115		Setting this value also immediately changes the LED state.
116
117What:		/sys/class/leds/<led>/half_duplex
118Date:		Jun 2023
119KernelVersion:	6.5
120Contact:	linux-leds@vger.kernel.org
121Description:
122		Signal the link half duplex state of the named network device.
123
124		If set to 0 (default), the LED's normal state is off.
125
126		If set to 1, the LED's normal state reflects the link half
127		duplex state of the named network device.
128		Setting this value also immediately changes the LED state.
129
130What:		/sys/class/leds/<led>/full_duplex
131Date:		Jun 2023
132KernelVersion:	6.5
133Contact:	linux-leds@vger.kernel.org
134Description:
135		Signal the link full duplex state of the named network device.
136
137		If set to 0 (default), the LED's normal state is off.
138
139		If set to 1, the LED's normal state reflects the link full
140		duplex state of the named network device.
141		Setting this value also immediately changes the LED state.
142