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docs: ABI: sysfs-class-led-trigger-netdev: add new modes and entry

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Document newly introduced modes and entry for the LED netdev trigger.

Add documentation for new modes:
- link_10
- link_100
- link_1000
- half_duplex
- full_duplex

Add documentation for new entry:
- hw_control

Also add additional info for the interval entry and the tx/rx modes with
the special case of hw_control ON.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20230621092653.23172-1-ansuelsmth@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Christian Marangi 2023-06-21 11:26:53 +02:00 committed by Jakub Kicinski
parent 004d25060c
commit 2ffb8d02a9
1 changed files with 89 additions and 0 deletions
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Documentation/ABI/testing/sysfs-class-led-trigger-netdev
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@ -13,6 +13,11 @@ Description:
Specifies the duration of the LED blink in milliseconds.
Defaults to 50 ms.
With hw_control ON, the interval value MUST be set to the
default value and cannot be changed.
Trying to set any value in this specific mode will return
an EINVAL error.
What: /sys/class/leds/<led>/link
Date: Dec 2017
KernelVersion: 4.16
@ -39,6 +44,9 @@ Description:
If set to 1, the LED will blink for the milliseconds specified
in interval to signal transmission.
With hw_control ON, the blink interval is controlled by hardware
and won't reflect the value set in interval.
What: /sys/class/leds/<led>/rx
Date: Dec 2017
KernelVersion: 4.16
@ -50,3 +58,84 @@ Description:
If set to 1, the LED will blink for the milliseconds specified
in interval to signal reception.
With hw_control ON, the blink interval is controlled by hardware
and won't reflect the value set in interval.
What: /sys/class/leds/<led>/hw_control
Date: Jun 2023
KernelVersion: 6.5
Contact: linux-leds@vger.kernel.org
Description:
Communicate whether the LED trigger modes are driven by hardware
or software fallback is used.
If 0, the LED is using software fallback to blink.
If 1, the LED is using hardware control to blink and signal the
requested modes.
What: /sys/class/leds/<led>/link_10
Date: Jun 2023
KernelVersion: 6.5
Contact: linux-leds@vger.kernel.org
Description:
Signal the link speed state of 10Mbps 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
speed of 10MBps of the named network device.
Setting this value also immediately changes the LED state.
What: /sys/class/leds/<led>/link_100
Date: Jun 2023
KernelVersion: 6.5
Contact: linux-leds@vger.kernel.org
Description:
Signal the link speed state of 100Mbps 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
speed of 100Mbps of the named network device.
Setting this value also immediately changes the LED state.
What: /sys/class/leds/<led>/link_1000
Date: Jun 2023
KernelVersion: 6.5
Contact: linux-leds@vger.kernel.org
Description:
Signal the link speed state of 1000Mbps 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
speed of 1000Mbps of the named network device.
Setting this value also immediately changes the LED state.
What: /sys/class/leds/<led>/half_duplex
Date: Jun 2023
KernelVersion: 6.5
Contact: linux-leds@vger.kernel.org
Description:
Signal the link half duplex 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 half
duplex state of the named network device.
Setting this value also immediately changes the LED state.
What: /sys/class/leds/<led>/full_duplex
Date: Jun 2023
KernelVersion: 6.5
Contact: linux-leds@vger.kernel.org
Description:
Signal the link full duplex 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 full
duplex state of the named network device.
Setting this value also immediately changes the LED state.