power mode reverts back unexpectively from always awaken mode to fast mode after about 10 seconds

jean-yves · ‎Sep 28, 2021

Hi,

We have experienced a strange behaviour of the CYW43455 kernel module about power mode.

After setting up the wlan0 I discovered that the power mode was FAST mode (=2) by default. As we want a permanent connection I called 'wl PM 0' in order to set it in ALWAYS AWAKEN mode (=0).

However the PM automatically reverted back to FAST mode after about 10 seconds. This happens once.

Workaround is to sleep a while (like 10 seconds) before calling wl PM 0 again, but this introduces an unacceptable delay.

What could be the cause, and what are the right commands to set it correctly ?

thanks very much,

Regards,

Jean-Yves

jean-yves · ‎Mar 30, 2022

Hi @Vivek_gunapati , we had to focus on getting the hardware and software out to start the phones manufacturing, which made me suspend the FMAC changes and live with the workaround (background script that checks the rollback).
Maybe you want to close the issue? np, when it's time for us to resume, I'll just reopen the issue or open a new one, if necessary.
Thank you very much for your support. It is very much appreciated.
Best regards,
Jean-Yves

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power mode reverts back unexpectively from always awaken mode to fast mode after about 10 seconds

power mode reverts back unexpectively from always awaken mode to fast mode after about 10 seconds

Re: power mode reverts back unexpectively from always awaken mode to fast mode after about 10 seconds