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leds: trigger: Introduce a NETDEV trigger

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This commit introduces a NETDEV trigger for named device
activity. Available triggers are link, rx, and tx.

Signed-off-by: Ben Whitten <[email protected]>
Acked-by: Pavel Machek <[email protected]>
Signed-off-by: Jacek Anaszewski <[email protected]>
This commit is contained in:
Ben Whitten 2017-12-10 21:17:55 +00:00 • committed by Jacek Anaszewski
commit 06f502f57d
4 changed files with 549 additions and 0 deletions
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Documentation/ABI/testing/sysfs-class-led-trigger-netdev Normal file
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What: /sys/class/leds/<led>/device_name
Date: Dec 2017
KernelVersion: 4.16
Contact: [email protected]
Description:
Specifies the network device name to monitor.
What: /sys/class/leds/<led>/interval
Date: Dec 2017
KernelVersion: 4.16
Contact: [email protected]
Description:
Specifies the duration of the LED blink in milliseconds.
Defaults to 50 ms.
What: /sys/class/leds/<led>/link
Date: Dec 2017
KernelVersion: 4.16
Contact: [email protected]
Description:
Signal the link state of the named network device.
If set to 0 (default), the LED's normal state is off.
If set to 1, the LED's normal state reflects the link state
of the named network device.
Setting this value also immediately changes the LED state.
What: /sys/class/leds/<led>/tx
Date: Dec 2017
KernelVersion: 4.16
Contact: [email protected]
Description:
Signal transmission of data on the named network device.
If set to 0 (default), the LED will not blink on transmission.
If set to 1, the LED will blink for the milliseconds specified
in interval to signal transmission.
What: /sys/class/leds/<led>/rx
Date: Dec 2017
KernelVersion: 4.16
Contact: [email protected]
Description:
Signal reception of data on the named network device.
If set to 0 (default), the LED will not blink on reception.
If set to 1, the LED will blink for the milliseconds specified
in interval to signal reception.