Is there any way to get some "harmless" information about chipset?
I want to control some apects of how it works, to make some experimets.
For example I cant disable transmit retries, no mater what I do it transmits
same packet 10 times if does not get ack reply.
I made all trafic multicast to avoid this, but it is not good way.
Another problem is because I dont have good understanding how evrything
works, I cant change almost anything in this driver.
even simplest changes near low level stuff are almost deadly.
It can be alredy requested milion times, but why it is not posssible to get
at least some part of chipset documentation?
If it is so nesecary you could remove very secret stuff about power and
I dont understand how information about multicast filter calculation can be
or why receive packet descriptor must be secret?
Also even some general information is missing, what frequencies chipset can
cover and what output power it can deliver.
for example it is possible to hack hall and set max pcdac value, it
probabaly will not improve power very much, but signal disortion may be
also frequency control code is already available to public.
So we basicaly can do almost everything what is forbidden, but cant do any
Maibe atheros can reconsider and publicate some more information about this
for example at least some texts without register names and other secret
aslo we do not have chip errata, what means that some chipset bug will waste
weks of design time.
From: Thorsten von Eicken <tve@vo...> - 2005-09-26 03:02:14
> Is there any way to get some "harmless" information about chipset?
> I want to control some apects of how it works, to make some experimets.
> For example I cant disable transmit retries, no mater what I do it transmits
> same packet 10 times if does not get ack reply.
As far as I remember, the rate control modules get to specify how many
retries shall occur and at what bit rates. So I'm 99% sure you can
Overall, I agree that it would be nice to have a data sheet, but on the
other hand the driver is pretty well written, so it's not too hard to
read between the lines. The one item that would make the biggest
difference is to have someone who knows add some nice comments to the
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