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Date: Fri, 14 Mar 2014 14:39:14 +0800
From: Kevin Lo <kevlo@FreeBSD.org>
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To: Alexey Dokuchaev <danfe@FreeBSD.org>
Subject: Re: urtwn driver for Edimax EW-7811U WLAN nano USB Adapter
References: <201310081742.r98HfbBV055077@fire.js.berklix.net>
 <589BAB21-30E9-4750-A345-BE7AB1116F48@FreeBSD.org>
 <20140210122146.GA26853@FreeBSD.org> <531D6C9C.7010607@FreeBSD.org>
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Cc: "Julian H. Stacey" <jhs@berklix.com>, Alfred Perlstein <bright@mu.org>,
 Rui Paulo <rpaulo@FreeBSD.org>,
 "freebsd-current@freebsd.org bsd" <freebsd-current@freebsd.org>
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On 2014/03/10 15:47, Alexey Dokuchaev wrote:
> On Mon, Mar 10, 2014 at 03:41:16PM +0800, Kevin Lo wrote:
>> On 2014/02/10 20:21, Alexey Dokuchaev wrote:
>>> To augment this a bit: I also came across one of these dongles (vendor
>>> 0x0bda product 0x8176) that gave me this "timeout waiting for checksum
>>> report" message.  Retrying didn't help, but plugging the dongle out and
>>> then back in did.  After powercycling the machine, I had to replug it
>>> again.  Once replugged, the dongle seems to work fine (I rebuilt kernel
>>> and some ports via NFS over it thus far).
>>>
>>> This suggests that the driver (or more generic part of the USB stack)
>>> does not initialize something correctly, while full plug-and-play thing
>>> does it.  Any ideas?
>> We have to reset the bit of the R92C_MCUFWDL associated with checksum report
>> before writing firmware.  Could you try this patch? Thanks.
> Shit.  I'd like to help, but no longer have access to the dongle.  If I find
> anything similar (or find a way to get access to original dongle remotely),
> I'll let you know. :(

No worries.  I committed it as r263154.  Hope this problem get fixed. :-)

>
> Thanks for working on these things Kevin, I appreciate it.
>
> ./danfe

     Kevin