vht_capab reading 0x0 but `iw list` says otherwise

[Jouni Malinen]

On Wed, Oct 14, 2015 at 01:34:33PM -0400, James Sumners wrote:
> When I launch hostapd I see a line in the log that reads "hw vht capab:
> 0x0, conf vht capab: 0x0". That is accurate because I currently have no
> `vht_capab` line defined in my configuration. However, if I do an `iw
> list` on my device then I see the following list of capabilities:
> 
> ```
> VHT Capabilities (0x038071a0):

Please note that these are likely in a section that applies only for the
5 GHz band..

> When I set my hostapd config to have the line
> `vht_capab=[SHORT-GI-80][TX-STBC-2BY1][SU-BEAMFORMEE]` then I get
> an error that "SHORT-GI-80" is not supported. I can remove each
> capability from the configuration directive and get the same sort of
> result.
> 
> When I set `vht_oper_chwidth=1`, without setting `vht_capab`, then I
> get an error:
> 
> ```
> Mode: IEEE 802.11g Channel: 4 Frequency: 2427 MHz

VHT is defined only for the 5 GHz band, so this won't work on the
2.4 GHz band..

> Do you have any suggestions as to what could be wrong with my setup?

Move to 5 GHz band (hw_mode=a and a suitable channel like 36).

-- 
Jouni Malinen                                            PGP id EFC895FA