ATH10K set bitrates problem

frank agius ftagius at yahoo.com
Mon Jun 9 04:43:30 PDT 2014


On 6/6/2014 2:43 PM, Janusz Dziedzic wrote:
 > On 6 June 2014 18:43, Frank Agius <ftagius at yahoo.com> wrote:
 >> I am unable to set the bitrates for devices using the ath10k driver,
 >> regardless of the arguments I pass:
 >>
 >>
 >> # iw wlan0 set bitrates legacy-2.4 6 12 24
 >> command failed: Invalid argument (-22)
 >> # iw dev wlan0 set bitrates mcs-2.4 10
 >> command failed: Invalid argument (-22)
 >>
 >>
 >> The ath10k drivers were built from stable backports v3.15-rc1.   I 
am using
 >> firmware file firmware-2.bin_999.999.0.636
 >>
 >>
 >> Is this a known issue?
 >>
 > This is expected.
 > ath10k support only single rate setting (or single nss). So, please
 > check commit message,
 > ath10k: add set_bitrate_mask callback
 >
 > Try this:
 > iw wlan0 set bitrates legacy-2.4 18 ht-mcs-2.4
 > iw wlan0 set bitrates legacy-2.4 ht-mcs-2.4 6
 > iw wlan0 set bitrates - back to default mask.


Thanks, using the bitrate option ht-mcs-2.4 instead of mcs-2.4 worked. 
Note that I did have to upgrade the iw tools package.  The version I was 
using (3.11) does not have support for bitrate option ht-mcs.  Version 
3.15 of iw tools does support the new options.

frank agius



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