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P2P: Allow P2P client to specify preferred group channel

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When re-invoking a persistent group in P2P client role, the new
pref=<MHz> parameter can now be used with the p2p_invite command to
indicate a preferred operating frequency. Unlike the older freq=<MHz>
parameter, this leaves GO an option to select another channel (from our
supported channels) if the GO cannot accept the channel.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Jouni Malinen 2013-03-01 19:40:54 +02:00 • committed by Jouni Malinen
parent 5de4b72177
commit f5877af01e
7 changed files with 34 additions and 11 deletions
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8
wpa_supplicant/README-P2P
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@ -365,7 +365,7 @@ Remove all local services from internal SD query processing.
Invitation
p2p_invite [persistent=<network id>|group=<group ifname>] [peer=address]
[go_dev_addr=address] [freq=<freq in MHz>] [ht40]
[go_dev_addr=address] [freq=<freq in MHz>] [ht40] [pref=<MHz>]
Invite a peer to join a group (e.g., group=wlan1) or to reinvoke a
persistent group (e.g., persistent=4). If the peer device is the GO of
@ -374,7 +374,11 @@ used to specify which device to invite. go_dev_addr parameter can be
used to override the GO device address for Invitation Request should
it be not known for some reason (this should not be needed in most
cases). When reinvoking a persistent group, the GO device can specify
the frequency for the group with the freq parameter.
the frequency for the group with the freq parameter. When reinvoking a
persistent group, the P2P client device can use freq parameter to force
a specific operating channel (or invitation failure if GO rejects that)
or pref parameter to request a specific channel (while allowing GO to
select to use another channel, if needed).
Group Operations