| What: /sys/class/leds/<led>/ttyname |
| Date: Dec 2020 |
| KernelVersion: 5.10 |
| Contact: linux-leds@vger.kernel.org |
| Description: |
| Specifies the tty device name of the triggering tty |
| |
| What: /sys/class/leds/<led>/rx |
| Date: February 2024 |
| KernelVersion: 6.8 |
| Description: |
| Signal reception (rx) of data on the named tty device. |
| If set to 0, the LED will not blink on reception. |
| If set to 1 (default), the LED will blink on reception. |
| |
| What: /sys/class/leds/<led>/tx |
| Date: February 2024 |
| KernelVersion: 6.8 |
| Description: |
| Signal transmission (tx) of data on the named tty device. |
| If set to 0, the LED will not blink on transmission. |
| If set to 1 (default), the LED will blink on transmission. |
| |
| What: /sys/class/leds/<led>/cts |
| Date: February 2024 |
| KernelVersion: 6.8 |
| Description: |
| CTS = Clear To Send |
| DCE is ready to accept data from the DTE. |
| If the line state is detected, the LED is switched on. |
| If set to 0 (default), the LED will not evaluate CTS. |
| If set to 1, the LED will evaluate CTS. |
| |
| What: /sys/class/leds/<led>/dsr |
| Date: February 2024 |
| KernelVersion: 6.8 |
| Description: |
| DSR = Data Set Ready |
| DCE is ready to receive and send data. |
| If the line state is detected, the LED is switched on. |
| If set to 0 (default), the LED will not evaluate DSR. |
| If set to 1, the LED will evaluate DSR. |
| |
| What: /sys/class/leds/<led>/dcd |
| Date: February 2024 |
| KernelVersion: 6.8 |
| Description: |
| DCD = Data Carrier Detect |
| DTE is receiving a carrier from the DCE. |
| If the line state is detected, the LED is switched on. |
| If set to 0 (default), the LED will not evaluate CAR (DCD). |
| If set to 1, the LED will evaluate CAR (DCD). |
| |
| What: /sys/class/leds/<led>/rng |
| Date: February 2024 |
| KernelVersion: 6.8 |
| Description: |
| RNG = Ring Indicator |
| DCE has detected an incoming ring signal on the telephone |
| line. If the line state is detected, the LED is switched on. |
| If set to 0 (default), the LED will not evaluate RNG. |
| If set to 1, the LED will evaluate RNG. |
