From owner-freebsd-wireless@FreeBSD.ORG  Tue Sep  9 04:33:55 2014
Return-Path: <owner-freebsd-wireless@FreeBSD.ORG>
Delivered-To: freebsd-wireless@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by hub.freebsd.org (Postfix) with ESMTPS id 87A635C2
 for <freebsd-wireless@freebsd.org>; Tue,  9 Sep 2014 04:33:55 +0000 (UTC)
Received: from ns.kevlo.org (220-135-115-6.HINET-IP.hinet.net [220.135.115.6])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256
 bits))
 (Client CN "ns.kevlo.org", Issuer "ns.kevlo.org" (not verified))
 by mx1.freebsd.org (Postfix) with ESMTPS id 235E3B02
 for <freebsd-wireless@freebsd.org>; Tue,  9 Sep 2014 04:33:54 +0000 (UTC)
Received: from ns.kevlo.org (localhost [127.0.0.1])
 by ns.kevlo.org (8.14.8/8.14.8) with ESMTP id s894WMgG018634
 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO);
 Tue, 9 Sep 2014 12:32:22 +0800 (CST)
 (envelope-from kevlo@ns.kevlo.org)
Received: (from kevlo@localhost)
 by ns.kevlo.org (8.14.8/8.14.8/Submit) id s894WLwP018632;
 Tue, 9 Sep 2014 12:32:21 +0800 (CST) (envelope-from kevlo)
Date: Tue, 9 Sep 2014 12:32:21 +0800
From: Kevin Lo <kevlo@FreeBSD.org>
To: Carlos Jacobo Puga Medina <cpm@fbsd.es>
Subject: Re: TP-LINK TL-WN821N
Message-ID: <20140909043220.GA18621@ns.kevlo.org>
References: <20140707211035.5ce0a482fe062bc1ea64ace7@fbsd.es>
 <CAJ-VmokHTSGU6a7JBAx2=m6zU+EmE3eyn0YQJfjkja4uHHurpw@mail.gmail.com>
 <20140708022220.GA87876@ns.kevlo.org>
 <20140708124550.c60683f2c01f3f9aa6a4ff70@fbsd.es>
 <20140709100229.GA6733@ns.kevlo.org>
 <20140709154223.9623a93c2d458dc32339b554@fbsd.es>
 <20140710050524.GA14437@ns.kevlo.org>
 <20140710112344.86496b02b2d62197a1e467ba@fbsd.es>
 <20140710100317.GA16286@ns.kevlo.org>
 <20140824180120.37f6e1018e38dc970585e61e@fbsd.es>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20140824180120.37f6e1018e38dc970585e61e@fbsd.es>
User-Agent: Mutt/1.5.22 (2013-10-16)
Cc: freebsd-wireless@freebsd.org
X-BeenThere: freebsd-wireless@freebsd.org
X-Mailman-Version: 2.1.18-1
Precedence: list
List-Id: "Discussions of 802.11 stack,
 tools device driver development." <freebsd-wireless.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-wireless>, 
 <mailto:freebsd-wireless-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-wireless/>
List-Post: <mailto:freebsd-wireless@freebsd.org>
List-Help: <mailto:freebsd-wireless-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-wireless>, 
 <mailto:freebsd-wireless-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 09 Sep 2014 04:33:55 -0000

On Sun, Aug 24, 2014 at 06:01:20PM +0200, Carlos Jacobo Puga Medina wrote:
> 
> Hi Kevin,

Hi,

Sorry for the late response.

> Sometimes my wireless device fails to connect at boot, and I need to restart the system. Also it states that the device is not configured.
> 
> /boot/loader.conf
> if_urtwn_load="YES"
> legal.realtek.license_ack=1

You might add the following lines to /boot/loader.conf:

urtwn-rtl8192cfwT_load="YES"
urtwn-rtl8192cfwU_load="YES"

> It shows the following output:
> 
> urtwn0: timeout waiting for checksum report
> 
> Any thoughts?

I thought this problem was fixed in r263154, but apparently not.
Could you try this patch?  Thanks

Index: sys/dev/usb/wlan/if_urtwn.c
===================================================================
--- sys/dev/usb/wlan/if_urtwn.c	(revision 271297)
+++ sys/dev/usb/wlan/if_urtwn.c	(working copy)
@@ -2280,8 +2280,6 @@ urtwn_fw_reset(struct urtwn_softc *sc)
 			return;
 		urtwn_ms_delay(sc);
 	}
-	/* Force 8051 reset. */
-	urtwn_write_2(sc, R92C_SYS_FUNC_EN, reg & ~R92C_SYS_FUNC_EN_CPUEN);
 }
 
 static void