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Date:	Tue, 26 Aug 2014 16:56:01 +0200
From:	Arend van Spriel <>
To:	Michael Tokarev <>
CC:	<>,
	<>, <>
Subject: Re: BCM4313 & brcmsmac & 3.12: only semi-working?

On 08/26/14 07:13, Michael Tokarev wrote:
> [Adding netdev@ to the mix.
>   Original thread, started at Dec-2013, can be found at
> or
> ]
> 19.04.2014 15:42, Michael Tokarev wrote:
>> [big skip]
>> Tried kernel 3.14 with this device.  Still no go, the brcmsmac driver still
>> does not work correctly, it stalls as before.
> Today I tried 3.16 kernel today too, just for fun (since this whole brcmsmac
> thing looks not more like a non-working toy).  Now with another laptop and
> the same broadcom wifi adaptor (BRCM4313 802.11bgn Wireless Network Adapter
> rev 01) (because due to cracked usb port on my original notebook it does not
> work anymore).
> This combination (kernel&  wifi) does not work at all.  Or, it is more jokish
> than before -- the NIC works for ARP packets but nothing else, not even ping
> or DNS or NTP.  I see the access point sending replies (to pings or dns), but
> these replies are not shown by tcpdump on the laptop.  Even not all ARP packets
> sent by the AP reaches the laptop.
> So, I'm curious -- why this driver is found in regular section of kernel?
> It looks like it should be in staging at least, or better yet, in a new section
> titled "toy drivers" or something like this.  Does it work for any device at
> all?

Hi Michael,

Thanks for your encouraging suggestions. I revisited the threads you 
referred to. In the boardflags it shows you have a bt+wifi card. It 
could be that is an issue. The brcmsmac supports other devices, ie. 
bcm43224/5 and the bcm4313 comes in a number of varieties. From what you 
tell here it seems you have trouble in rx path so I will look into that 
area if there is any specifically done for your variant of the bcm4313.


> Thanks,
> /mjt

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