Hi All,

We have purchased radio module "WPEA-352ACN" from SparkLan. We are using 
this radio module with ViaTech board for 802.11 AC functionality. We are 
running linux kernel 3.19.1 with atheros driver ath10k up with all the 
configuration elements.

We are facing some issues in getting up 802.11 AC functionality for the 
radio. Please find below the queries:

1) We are using latest ath10k driver with 802.11AC configuration 
enabled. On loading the driver for ath10k, we are not seeing "802.11AC" 
in iwconfig utility for wlan interface. It is showing only 802.11 abgn 
for the interface.

2) Tried to make AP using the interface by taking help of hostapd 
utility. Searched on internet for configuration related to making 802.11 
AC AP and used them all. In this case, Mode parameter in iwconfig is 
changed to Master which shows AP functionality, but the interface is 
still showing 802.11 abgn supported only.

3) We are using plain text version of regulatory database file (DB.txt) 
which is maintained for use of CRDA. We are making sure that DB.txt file 
is parsed properly and the database is added into MAC driver by parsing 
the database file.

4) While running hostapd with full configuration for 802.11AC AP 
settings, no error is seen for setting up the interface. Channel setting 
is done for Auto-configuration and VHT settings are also applied in the 
configuration file. The interface is not able to get up in 802.11 AC 
mode, instead it is coming up only in 802.11 abgn only.

5) There is one error seen after firmware gets downloaded and starts 
running. The error is as below:
ath10k_pci 0000:02:00.0: Direct firmware load for 
ath10k/cal-pci-0000:02:00.0.bin failed with error -2
Can this may create this issue to happen also?

Please find attached the DB.txt and hostapd configuration file for 
reference.

Can anyone please help us in getting 802.11 AC mode up and running in 
the radio.