SendTxFeedback?

[Marcelo Tosatti]

Hi Ronak,

On Thu, Jun 22, 2006 at 03:12:36PM -0700, Ronak Chokshi wrote:
> -----Original Message-----
> From: Marcelo Tosatti [mailto:marcelo at kvack.org] 
> Sent: Thursday, June 22, 2006 3:00 PM
> To: Ronak Chokshi; libertas-dev at lists.infradead.org
> Subject: SendTxFeedback?
> 
> Hi Ronak,
> 
> It is my understanding that given a packet transmission failure, the
> driver attempts to send the failed packet back to the upper layers (what
> is called "tx feedback"), if radiotap mode is enabled.
> 
> At this level, the packet transmission can only fail due to a removed
> card or failure in the USB transfer.
> 
> >> yes this is true.
> 
> I fail to see any use for such an "error reporting", can you explain
> what is going on?
> 
> >> This has been adopted from the Roofnet stack. It depends on your
> choice to remove this error reporting. This is useful mainly to depict
> the wireless environment around the STA.

Since this is nonstandard behaviour I will remove it, then.

> Thanks
> 
> PS: do you have any numbers for the savings gained by enabling the power
> mode saving mode, when idle?
> 
> >> Yes, we might have some numbers for the power save mode. Let me check
> and get back to you. How will you guys use these numbers? 

> Are you in the process of characterizing power consumption of the WLAN
> device in the power save mode?

Well, I'm sort of wondering what the power savings are... We still haven't 
started a more serious procedure for this.

> I am assuming that by idle, you mean that the STA is
> associated with the AP but is not engaged in Tx or Rx of any traffic,
> right?

Correct.