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From: Nikita N. <nikitan-Z02xGKUfPWYS+FvcfC7Uqw <at> public.gmane.org>
Subject: Re: brcmsmac on BCM4313: frames 11n not shown in monitor mode
Newsgroups: gmane.linux.kernel.wireless.general
Date: Monday 13th January 2014 19:25:47 UTC (over 4 years ago)
Sure Arend, here in attach the capture file, I dont have time to clean
it, so I send it to you as-is.
Of course the capture was taken by BCM4313 in monitor.
The AP is set to 11n *ONLY* (NO mixed mode b/g/n), bssid is
00:1f:a4:de:03:b2, filtering from that you will find all what you need.
The sta is an ath9k (74:e5:43:93:56:82) from Windows, WPA encrypted,
during the capture it was always connected and transferring (tcp,http,
icmp, arp, dhcp, and so on..), I just did a reconnect 1 time to produce
the setup frames you need.
Fyi, here also the last part of dmesg output:
Loading modules backported from Linux version v3.13-rc2-0-gdc1ccc4
Backport generated by backports.git v3.13-rc2-1-0-gf69c248
cfg80211: Calling CRDA to update world regulatory domain
bcma-pci-bridge 0000:02:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
bcma-pci-bridge 0000:02:00.0: setting latency timer to 64
bcma: bus0: Found chip with id 0x4313, rev 0x01 and package 0x08
bcma: bus0: Core 0 found: ChipCommon (manuf 0x4BF, id 0x800, rev 0x24,
class 0x0)
bcma: bus0: Core 1 found: IEEE 802.11 (manuf 0x4BF, id 0x812, rev 0x18,
class 0x0)
bcma: bus0: Core 2 found: PCIe (manuf 0x4BF, id 0x820, rev 0x11, class
bcma: bus0: Bus registered
cfg80211: World regulatory domain updated:
cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain,
cfg80211:   (2402000 KHz - 2494000 KHz @ 40000 KHz), (N/A, 3000 mBm)
cfg80211:   (4910000 KHz - 5235000 KHz @ 40000 KHz), (N/A, 3000 mBm)
NET: Registered protocol family 10
ADDRCONF(NETDEV_UP): eth0: link is not ready
brcmsmac bcma0:0: mfg 4bf core 812 rev 24 class 0 irq 17
ieee80211 phy0: Selected rate control algorithm 'minstrel_ht'
brcmsmac bcma0:0: brcms_ops_config: change power-save mode: false
device mon0 entered promiscuous mode


On Mon, Jan 13, 2014, at 10:57 AM, Arend van Spriel wrote:
> On 01/13/2014 07:18 PM, Nikita N. wrote:
> > Yes Arend, I confirm, 802.11 frames transmitted at 11n bitrate.
> > The card looks 11n capable, as it handshakes allright from Windows with
> > my router set to 11n only (beacon frames contain all HT tags as normal)
> > But when I flip in monitor mode under Linux, only 11b/g frames are
> > (Wireshark,no filter)
> > Yes of course I can send you a capture, any particular frames do you
> > want inside?
> - beacons
> - setup connection (AUTH/ASSOC)
> - some data transfers that would be aggregated.
> Regards
> > Regards
> > 
> > On Mon, Jan 13, 2014, at 08:23 AM, Arend van Spriel wrote:
> >> On 01/13/2014 10:30 AM, Nikita N. wrote:
> >>> Hi All :) an issue for the maintainers of brcmsmac, or anybody who
> >>> knows.
> >>> Using module brcmsmac, when I flip my BCM4313 in monitor mode, it
> >>> allright all frames sent in 11b and 11g mode, but the *11n* ones are
> >>> shown, maybe filtered out or not detected.
> >>> Is that a known bug?
> >>> If not, how can I set brcmsmac to show also 11n frames?
> >>
> >> What do you mean by 11n frames? Do you mean 802.11 frames transmitted
> >> a 11n bitrate? Can you share a capture?
> >>
> >> Regards,
> >> Arend
> > 

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