[PATCH] hostapd: allow disabling background radar

Ben Greear greearb at candelatech.com
Sun Apr 17 13:09:41 PDT 2022

On 4/17/22 1:03 PM, Johannes Berg wrote:
> On Sat, 2022-04-16 at 18:02 +0300, Jouni Malinen wrote:
>> I would be much more likely to accept a change that would disable this
>> recently added capability by default and provide a new option to enable
>> it. Should the driver side functionality become more robust in the
>> future, this new configuration option in hostapd could then be change to
>> default to having this capability enabled or even better, remove that
>> configuration parameter completely once there are no known issues in
>> commonly used kernel versions.
> This was a pretty recent driver capability, arguably it should just be
> disabled in the driver (CC stable) and then we don't need to have these
> discussions in userspace ...

The feature might work fine with many radios supported by this driver,
just not the asia-rf.

Seems the pci id for the asia-rf is same as other cards that do support
the feature, but hopefully the mtk folks can find some way to differentiate
the hardware automatically.

At least with user-space change, those wanting to use the feature on supported
hardware can do so with a config change in hostapd w/out having to hack yet another
out-of-tree patch into the driver.


> johannes

Ben Greear <greearb at candelatech.com>
Candela Technologies Inc  http://www.candelatech.com

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