On 1/15/2021 3:51 PM, Andrew Zaborowski wrote:
On Fri, 15 Jan 2021 at 15:12, Arend Van Spriel
<arend.vanspriel@xxxxxxxxxxxx> wrote:>
+ Johannes
- netdevs
On 1/14/2021 5:36 PM, 'Alvin Šipraga' via BRCM80211-DEV-LIST,PDL wrote:
Add support for CQM RSSI measurement reporting and advertise the
NL80211_EXT_FEATURE_CQM_RSSI_LIST feature. This enables a userspace
supplicant such as iwd to be notified of changes in the RSSI for roaming
and signal monitoring purposes.
The more I am looking into this API the less I understand it or at least
it raises a couple of questions. Looking into nl80211_set_cqm_rssi() [1]
two behaviors are supported: 1) driver is provisioned with a threshold
and hysteresis, or 2) driver is provisioned with high and low threshold.
Right.
The second behavior is used when the driver advertises
NL80211_EXT_FEATURE_CQM_RSSI_LIST *and* user-space provides more than
one RSSI threshold.
Or, when the driver doesn't implement set_cqm_rssi_config (the old
method). So the driver can stop supporting set_cqm_rssi_config when
it implements set_cqm_rssi_range_config.
Argh. Totally overlooked these were two different callbacks. In that
case it is easy to determine what is being requested.
Thanks,
Arend
