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From: Stefan Assmann <sassmann@redhat.com>
To: ali@internetdog.org
Cc: Larry Finger <Larry.Finger@lwfinger.net>,
	wireless <linux-wireless@vger.kernel.org>
Subject: Re: r8712u issue
Date: Tue, 19 Jul 2011 19:16:36 +0200	[thread overview]
Message-ID: <4E25BBF4.1010003@redhat.com> (raw)
In-Reply-To: <20110719161656.GA7099@internetdog.org>

On 19.07.2011 18:16, Ali Bahar wrote:
> On Tue, Jul 19, 2011 at 11:06:55AM -0500, Larry Finger wrote:
>> On 07/19/2011 08:24 AM, Stefan Assmann wrote:
>>>
>>> So far I can say that with scan_ssid=1 after rebooting the AP the
>>> connection is properly re-established. Looks promising.
>>
>> Your results make sense. The driver is fairly passive in all this.
>> It gets TX requests from the MAC layer, and passes received data
>> back up to that layer. It seems likely that the MAC layer built into
>> r8712u is not keeping track of missing responses, or it is not
>> probing the AP. In either case, it would not be productive to devote
>> any effort to fixing that part when either using NetworkManager or
>> setting scan_ssid for wpa_supplicant establishes periodic scans.
>> When these fail to get response from the AP, the softmac code will
>> respond, as you see.
>>
>> The ultimate fix will be to convert to the driver to use mac80211,
> 
> Just what I've been thinking lately. I didn't think it very worthwhile
> to invest too much into fixing the miscellany.

Agreed! Maybe we could add a note to the documentation to make the
behaviour more obvious.

  Stefan

  reply	other threads:[~2011-07-19 17:16 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <4E2051F3.20103@redhat.com>
2011-07-15 15:15 ` r8712u issue Larry Finger
2011-07-16 15:15   ` Ali Bahar
2011-07-18  7:49   ` Stefan Assmann
2011-07-18  8:27     ` Ali Bahar
2011-07-18  8:46       ` Stefan Assmann
2011-07-18  9:01         ` Ali Bahar
2011-07-18 14:53         ` Larry Finger
2011-07-18 15:01           ` Stefan Assmann
2011-07-18 15:44             ` Larry Finger
2011-07-19 13:24               ` Stefan Assmann
2011-07-19 13:28                 ` Ali Bahar
2011-07-19 16:06                 ` Larry Finger
2011-07-19 16:16                   ` Ali Bahar
2011-07-19 17:16                     ` Stefan Assmann [this message]
2011-07-19 17:32                       ` Ali Bahar
2011-07-19 17:38                         ` Stefan Assmann
2011-07-19 17:45                           ` Larry Finger
2011-07-19 17:51                             ` Ali Bahar

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