modify PDA to control txpower

William Tai williamt at
Fri Aug 8 18:03:53 EDT 2003

----- Original Message ----- 
From: "Jouni Malinen" <jkmaline at>
To: <hostap at>
Sent: Monday, August 04, 2003 7:31 PM
Subject: Re: modify PDA to control txpower

> On Mon, Aug 04, 2003 at 11:00:52AM -0700, William Tai wrote:
> >     I am trying modify PDR 0x0300 and PDR 0x0301 to control txpower by
> > calling prism2_download_volatile( ).
> You are trying to modify PDA by using _volatile_ download?? PDA is a
> block in flash.. In addition, please note that changing the PDA values
> does not really change anything unless you download a new image after
> that. In many cases, it would probably be easier to just modify
> prism2_srec to overrite card PDA with something else when plugging PDRs.
Hi Jouni:

Could you explain more detailly in how to just modify prism2_src to
overwrite card PDA
with somethins else when plugging PDRs?
I do not works on linux machine.
Hence coulf you tell me which functions invloved?


> > However I do not know the param0 and param1.
> > I know the starting addr of PDA is 0x7f0000.
> You cannot load PDA that way with volatile download.
> -- 
> Jouni Malinen                                            PGP id EFC895FA
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