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| docs:techref:dfs [2018/02/20 18:51] – ↷ Page moved from doc:techref:dfs to docs:techref:dfs bobafetthotmail | docs:techref:dfs [2024/01/02 15:07] (current) – mention ath11k palebloodsky |
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| ====== DFS ====== | ====== DFS ====== |
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| DFS is short for Dynamic Frequency Selection. It plays a role in 5GHz frequencies that are shared with weather radar. | DFS is short for [[wp>Dynamic_frequency_selection]]. It plays a role in 5GHz frequencies that are shared with weather radar. |
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| It is related to [[wp>IEEE_802.11h|802.11h]]. | It is related to [[wp>IEEE_802.11h|802.11h]]. |
| :!: Due to fast development, changing hardware, regulatory changes and compliance issues there can be interoperability issues. | :!: Due to fast development, changing hardware, regulatory changes and compliance issues there can be interoperability issues. |
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| :!: OpenWrt uses Open Source drivers which might be abandoned by manufactorer or no longer support some 5GHz operation due to regulatory changes. | :!: OpenWrt uses open oource drivers which might be abandoned by manufactorer or no longer support some 5GHz operation due to regulatory changes. |
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| :!: Original factory drivers can offer DFS when OpenWrt does not. | :!: Original factory drivers can offer DFS when OpenWrt does not. |
| * ath9k: DFS-ETSI, DFS-FCC (source: [[http://marc.info/?l=linux-wireless&m=144524581929146|linux-wireless]]), probably DFS-JP (git commits) | * ath9k: DFS-ETSI, DFS-FCC (source: [[http://marc.info/?l=linux-wireless&m=144524581929146|linux-wireless]]), probably DFS-JP (git commits) |
| * ath10k: DFS-FCC (source: [[http://marc.info/?l=linux-wireless&m=144524581929146|linux-wireless]]), probably DFS-ETSI | * ath10k: DFS-FCC (source: [[http://marc.info/?l=linux-wireless&m=144524581929146|linux-wireless]]), probably DFS-ETSI |
| | * ath11k: DFS-FCC (source: [[https://marc.info/?l=linux-wireless&m=170227574420539|linux-wireless]]), probably DFS-ETSI |
| | * mt76: DFS-ETSI, DFS-FCC, DFS-JP. As of 2021-02-22, DFS is unsupported on the MT7613 radio however, despite the hardware supporting it. |
| * mwlwifi (source:[[http://marc.info/?l=linux-wireless&m=146707822404863&w=2|linux-wireless]]), but support is problematic on some hardware and won't be fixed ([[https://github.com/kaloz/mwlwifi/issues/75|GitHub issue #75]]) | * mwlwifi (source:[[http://marc.info/?l=linux-wireless&m=146707822404863&w=2|linux-wireless]]), but support is problematic on some hardware and won't be fixed ([[https://github.com/kaloz/mwlwifi/issues/75|GitHub issue #75]]) |
| * mwifiex (source: git log: "DFS support in AP mode",[[http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cf075eac9ca94ec54b5ae0c0ec798839f962be55|kernel.org]]) | * mwifiex (source: git log: "DFS support in AP mode",[[http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cf075eac9ca94ec54b5ae0c0ec798839f962be55|kernel.org]]) |
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| * mwl8k | * mwl8k |
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