| What: /sys/class/leds/<tty_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/<tty_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/<tty_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/<tty_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/<tty_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/<tty_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/<tty_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. |