nl80211: allow BSS data to include CLOCK_BOOTTIME timestamp

Browse source

For location and connectivity services, userspace would often like
to know the time when the BSS was last seen. The current "last seen"
value is calculated in a way that makes it less useful, especially
if the system suspended in the meantime.

Add the ability for the driver to report a real CLOCK_BOOTTIME stamp
that can then be reported to userspace (if present).

Drivers wishing to use this must be converted to the new API to call
cfg80211_inform_bss_data() or cfg80211_inform_bss_frame_data(). They
need to ensure the reported value is accurate enough even when the
frame might have been buffered in the device (e.g. firmware.)

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
[modified to use struct, inlines]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

...

This commit is contained in:

Dmitry Shmidt 2015-10-07 11:32:53 +02:00 • committed by Johannes Berg

parent 93f0490e5d

commit 6e19bc4b70

7 changed files with 130 additions and 60 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

95

include/net/cfg80211.h

View file

4

include/uapi/linux/nl80211.h

View file