Only Lowest Legacy Rate 6Mbps used by Adhoc Mode

[Janusz Dziedzic]

On 4 March 2014 08:29, Yeoh Chun-Yeow <yeohchunyeow at gmail.com> wrote:
>> If you refer to what driver reports (via nl80211 to userspace) then
>> this is expected. Current FW/HW isn't capable of reporting tx rate for
>> each sent frame so ath10k always reports 6mbps.
>>
>> Or do you refer to what you see on a sniffer?
>>
>
> Nope. This is the rate captured by wireshark and also confirm with the
> following:
>
> [ 3807.810000] ath10k: rx skb 86c77480 len 116  rate_idx 0 vht_nss 0
> freq 5180 band 1 flag 0x200000 fcs-err 0
> [ 3808.810000] ath10k: rx skb 8735fc00 len 116  rate_idx 0 vht_nss 0
> freq 5180 band 1 flag 0x200000 fcs-err 0
> [ 3809.810000] ath10k: rx skb 8738b9c0 len 116  rate_idx 0 vht_nss 0
> freq 5180 band 1 flag 0x200000 fcs-err 0
>
> It seems that it always stuck at 6Mbps legacy rate. Any idea why?
>

You can try to set/force tx rate using iw:

Eg. setup legacy 18Mbps
iw wlanX set bitrates legacy-5 18 ht-mcs-5 vht-mcs-5

Set nss=1
iw wlanX set bitrates legacy-5 ht-mcs-5 vht-mcs-5 1:0-9

And check using sniffer if that will work - I didn't check adhoc.

BR
Janusz