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CONFIG_CFG80211_REG_RELAX_NO_IR: cfg80211 support for NO_IR relaxation

General informations

The Linux kernel configuration item CONFIG_CFG80211_REG_RELAX_NO_IR:

Help text

This option enables support for relaxation of the NO_IR flag for situations that certain regulatory bodies have provided clarifications on how relaxation can occur. This feature has an inherent dependency on userspace features which must have been properly tested and as such is not enabled by default.

A relaxation feature example is allowing the operation of a P2P group owner (GO) on channels marked with NO_IR if there is an additional BSS interface which associated to an AP which userspace assumes or confirms to be an authorized master, i.e., with radar detection support and DFS capabilities. However, note that in order to not create daisy chain scenarios, this relaxation is not allowed in cases where the BSS client is associated to P2P GO and in addition the P2P GO instantiated on a channel due to this relaxation should not allow connection from non P2P clients.

The regulatory core will apply these relaxations only for drivers that support this feature by declaring the appropriate channel flags and capabilities in their registration flow.

Hardware

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