From: Jim Thompson (jim_at_musenki.com)
Date: 2002-01-01 08:34:10 UTC
Jouni Malinen writes:
> I've tested setting up CR31 (Manual TX Power Control) from prism2.o
> driver. This can be done using WriteMIF command. Actually, there is
> still code for reading the control registers in the driver (e.g.,
> 'iwpriv wlan0 readmif 62' reads the CR31).
>
> However, there is a problem that seems to prevent the driver from
> overriding the TX power. I have successfully set CR31 to some other
> value for couple of milliseconds, but something (I would guess MAC)
> reverts the change almost instantly. In order to control the TX power
> manually, this automatic setting should be disabled somehow (or it
> could be used, if MAC has a setting for TX power control). I haven't
> looked very closely into this, but this could require firmware
> changes..
http://www.intersil.com/rnwscripts/custfaq.cfg/php.exe/enduser/std_adp.php?p_sid=RcOJM64g&p_lva=010419-000038&p_refno=010315-000028&p_created=984686402&p_sp=cF9ncmlkc29ydD0mcF9yb3dfY250PTU3MyZwX3NlYXJjaF90ZXh0PSZwX3NlYXJjaF90eXBlPTMmcF9wcm9kX2x2bDE9NyZwX3Byb2RfbHZsMj1_YW55fiZwX2NhdF9sdmwxPX5hbnl_JnBfY2F0X2x2bDI9fmFueX4mcF9zb3J0X2J5PXByb2R1Y3RzLm5hbWUmcF9wYWdlPTk*&p_li=
says:
Firmware does not support TX Power Control.
�
Question
Does firmware support TX Power Control?
�
Answer
�
Firmware does not currently support Tx Power Control; it will at some
time in the future, but this task is not currently schedule
There also seems to be some interaction with the PDAs.
Jim