en:users:documentation:acs
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en:users:documentation:acs [2015/01/26 09:49] 127.0.0.1 external edit |
en:users:documentation:acs [2015/05/15 09:49] Rafał Miłecki [Driver implementation details] Fix typo in RX time enums |
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| Line 176: | Line 176: | ||
| ACS: * channel 13: total interference = 0.0680776 | ACS: * channel 13: total interference = 0.0680776 | ||
| ACS: Ideal channel is 13 (2472 MHz) with total interference factor of 0.0680776</code> | ACS: Ideal channel is 13 (2472 MHz) with total interference factor of 0.0680776</code> | ||
| + | |||
| + | ===== Driver implementation details ===== | ||
| + | |||
| + | User space can get survey using ''NL80211_CMD_GET_SURVEY'' command. It requires: | ||
| + | * ''cfg80211'' drivers to implement ''dump_survey'' callback | ||
| + | * ''mac80211'' drivers to implement ''get_survey'' callback | ||
| + | |||
| + | As explained is algorithm section, driver needs to provide (fill) few different informations about a channel: | ||
| + | * Noise floor (''SURVEY_INFO_NOISE_DBM'') put into ''NL80211_SURVEY_INFO_NOISE'' | ||
| + | * Channel time (''SURVEY_INFO_TIME'') put into ''NL80211_SURVEY_INFO_TIME'' | ||
| + | * Time of channel unavailability which is **one** of: | ||
| + | * RX time (''SURVEY_INFO_TIME_RX'') put into ''NL80211_SURVEY_INFO_TIME_RX'' | ||
| + | * Busy time (''SURVEY_INFO_TIME_BUSY'') put into ''NL80211_SURVEY_INFO_TIME_BUSY'' | ||
| ===== Hostapd setup ===== | ===== Hostapd setup ===== | ||
en/users/documentation/acs.txt · Last modified: 2021/03/01 04:28 by Nikolas Nyby
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