Re: ath9k driver - is it possible to disable tx/rx radio chains?

Hi
Thank you so much. You made my day!
The command works. Im looking forward to test it out :-)


I also have two of these card. they don=E2=80=99t have the same bitmap, =
but I assume they work the same way?

qca9882 chipset with 2 chains available using ath10k driver:
	Available Antennas: TX 0x3 RX 0x3
	Configured Antennas: TX 0x3 RX 0x3

qca9880 chipset with 3 chains available using ath10k driver:
	Available Antennas: TX 0x3 RX 0x3
	Configured Antennas: TX 0x3 RX 0x3


Best Regards,

H=C3=A5vard

On 18 Aug 2017, at 09:00, Matthias May [off-list ref] =

wrote:

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On 18/08/17 01:32, H=C3=A5vard Rabbe wrote:

quoted

Hi
I=E2=80=99m using wifi card with AR9280 chipset that uses the ath9k =

driver.

quoted

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The card has 2 available radio chains and I=E2=80=99m only going to =

connect 1 antenna.

quoted

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Is it possible to disable the radio chain im not using?
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Best Regards,
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H=C3=A5vard Rabbe
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Help text from iw:
phy <phyname> set antenna <bitmap> | all | <tx bitmap> <rx bitmap>
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You can set the rx/tx mask with
iw phy phy0 set antenna 1
to not use the second chain
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or
iw phy phy0 set antenna 1 3
to not use the second chain for tx, but still use it for rx.
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You can see the currently active mask with:
iw list | grep Antenna
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Be aware that the value set here is a bitmask only allows the values =

1/3/7 (for 1, 2 and 3 chains).

Chain 0 is always active.
--> You can not disable chain 0 and only use chain 1.
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BR
Matthias