AR6004, firmware-5, and HT mode?

Ben Greear greearb at
Wed Oct 21 14:10:06 PDT 2015

I'm doing a bit of testing on an AR6004 NIC.

First thing I noticed is that it does not advertise
HT rates, because the ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE is not set.

I'm using the latest HW3.0 fw-5.bin firmware from the ath6kl-firmware repo.

Can this firmware really not handle HT mode?

Here is some dmesg output, including a debug line I put in to
figure out why HT wasn't enabled:

[root at ath6k-ct520 lanforge]# dmesg|grep ath6k
[    2.972119] systemd[1]: Set hostname to <ath6k-ct520>.
[    7.464828] ath6kl: host only supports scatter of :1 entries, need: 16
[    7.475775] ath6kl: ar6004 hw 3.0 sdio fw api 5
[    7.475787] ath6kl: firmware supports: 64bit-rates,map-lp-endpoint,ratetable-mcs15,no-ip-checksum
[    7.476588] ath6kl: ht: 1 rsn-override: 0 2gig: 1 5gig: 1

Ben Greear <greearb at>
Candela Technologies Inc

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