Hello, John, Thanks for shedding some light on this matter. This file is where all the TX99 configuration is made (packet header seems to be configured on line 40): http://lxr.free-electrons.com/source/drivers/net/wireless/ath/ath9k/tx99.c
I was able to change the tx data rate on line 84. But i could not find where to change the TXPower (I will keep searching). Luiz On Thu, Feb 11, 2016 at 3:13 PM, John Clark <jeclark2...@aim.com> wrote: > I’ve not dealt with Atheros of late, since switching to a completely > different radio, which reduced any number of issues I had with Atheros > devices. > > The issues were mainly due to the complete and abysmal lack of > documentation on the radio control portions of any set of chips, and any > inquires directly to Qualcom stonewalled… There were a few helpful hints > from people on this and other lists… but the ‘official’ 3rd party entities > that did have more intimate knowledge, have a vested interest in keeping > small developments in the dark, so as to be able to charge outrageous sums > for small ‘changes’ to the code set. > > But after that unpaid public service announcement… > > I recall... I was able to set TX power by setting the value that is put in > the packet header just before being put into a transmit queue. I don’t have > the code handy so you will have to sleuth out where in the code the packet > header values are setup. I did make it a /sys/…/debug/ath node so I could > change it easily at the command level. Since my use of TX99 was for > regulatory testing, that was sufficient for my needs. > > John Clark. > > On Feb 11, 2016, at 1:13 PM, Luiz de Barros Oliveira Neto < > lbon...@gmail.com> wrote: > > > Hello, All, > > > > After doing some hacking on the ath9k code that is part of > compaq-wireless-2015-03-09, I have being doing some verifications of an > AR9280 based embedded radio using the TX99 feature (used for regulatory > certification). > > I was able to turn the functionality on/off, change data rates, > enable/disable antenna ports, change channel type (20MHz, 40MHz-, 40MHz+). > > But looks like I do not have control of the TXPower via the netlink > interface when using TX99 mode. > > Unlike AR9003 based devices (AR93XX, AR94XX, AR95XX), AR9002 based > devices (AR928X, AR922X) do not seem to implement the hw_tx99_set_txpower > function. > > > > I could not find any information on how to implement the power control > on TX99 for AR9280.... > > Are there any patches around that would allow me to set the output power > of AR9280 on TX99 mode? > > How is the power control made on TX99 mode for AR9280? > > > > Thanks in Advance, > > > > Luiz Oliveira Neto > > _______________________________________________ > > ath9k-devel mailing list > > ath9k-devel@lists.ath9k.org > > https://lists.ath9k.org/mailman/listinfo/ath9k-devel > >
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