> -----Original Message-----
> From: Maciej S. Szmigiero [mailto:[email protected]]
> Sent: Sunday, April 18, 2021 2:08 AM
> To: Pkshih
> Cc: [email protected]; [email protected]; 
> [email protected];
> [email protected]; [email protected]; Larry Finger
> Subject: Re: rtlwifi/rtl8192cu AP mode broken with PS STA
> 
> On 08.04.2021 21:04, Maciej S. Szmigiero wrote:
> > On 08.04.2021 06:42, Pkshih wrote:
> >>> -----Original Message-----
> >>> From: Maciej S. Szmigiero [mailto:[email protected]]
> >>> Sent: Thursday, April 08, 2021 4:53 AM
> >>> To: Larry Finger; Pkshih
> >>> Cc: [email protected]; [email protected]; 
> >>> [email protected];
> >>> [email protected]; [email protected]
> >>> Subject: Re: rtlwifi/rtl8192cu AP mode broken with PS STA
> >>>
> > (...)
> >>>> Maceij,
> >>>>
> >>>> Does this patch fix the problem?
> >>>
> >>> The beacon seems to be updating now and STAs no longer get stuck in PS
> >>> mode.
> >>> Although sometimes (every 2-3 minutes with continuous 1s interval pings)
> >>> there is around 5s delay in updating the transmitted beacon - don't know
> >>> why, maybe the NIC hardware still has the old version in queue?
> >>
> >> Since USB device doesn't update every beacon, dtim_count isn't updated 
> >> neither.
> >> It leads STA doesn't awake properly. Please try to fix dtim_period=1 in
> >> hostapd.conf, which tells STA awakes every beacon interval.
> >
> > The situation is the same with dtim_period=1.
> >
> (...)
> 
> Ping-Ke,
> are you going to submit your set_tim() patch so at least the AP mode is
> usable with PS STAs or are you waiting for a solution to the delayed
> beacon update issue?
> 

I'm still trying to get a 8192cu, and then I can reproduce the symptom you
met. However, I'm busy now; maybe I have free time two weeks later.

Do you think I submit the set_tim() patch with your Reported-by and Tested-by 
first?

Thanks 
Ping-Ke

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