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

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On 18/08/17 23:04, Håvard Rabbe wrote:
> 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’t 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
> 
> 

The bitmap is always the same.
0x1 for chain 0
0x3 for chain 0 and 1
0x7 for chain 0, 1 and 2
0xf for chain 0, 1, 2 and 3

Are you sure that your qca9880 card has 3 chains?
Because the "Available Antennas: TX 0x3 RX 0x3" says there are only 2 chains available.
It could be that the card physically has 3 chains, but the 3rd is disabled in eeprom.

BR
Matthias



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