cfg80211: return channel noise via survey API

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This patch implements the NL80211_CMD_GET_SURVEY command and an get_survey()
ops that a driver can implement. The goal of this command is to allow a
drivers to report channel survey data (e.g. channel noise, channel
occupation).

For now, only the mechanism to report back channel noise has been
implemented.

In future, there will either be a survey-trigger command --- or the existing
scan-trigger command will be enhanced. This will allow user-space to
request survey for arbitrary channels.

Note: any driver that cannot report channel noise should not report
any value at all, e.g. made-up -92 dBm.

Signed-off-by: Holger Schurig <holgerschurig@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

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Holger Schurig 2009-11-11 12:25:40 +01:00 • committed by John W. Linville

parent a043897a31

commit 61fa713c75

3 changed files with 173 additions and 0 deletions

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34

include/linux/nl80211.h

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34

include/net/cfg80211.h

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