ESP32 Forum

Posted: **Fri Jul 19, 2024 10:39 am**

Hi,

I would like to control my lan8720 phy regarding link speed (10 / 100 mbit) to save some power.
There ist this method in the mac struct to do that

https://docs.espressif.com/projects/esp ... set_speedE

but - how do I access this object from my program?

Posted: **Mon Jul 22, 2024 10:05 am**

Try to get Ethernet handler https://github.com/espressif/arduino-es ... ETH.h#L165

Once you have it perform:

Code: Select all

    eth_speed_t speed = ETH_SPEED_10M;
    esp_eth_ioctl(eth_handle, ETH_CMD_S_SPEED, &speed);

Posted: **Mon Jul 22, 2024 6:27 pm**

You should post this as a feature request on https://github.com/espressif/arduino-esp32/issues

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