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From: Rob Browning <rlb@defaultvalue.org>
To: linux-wireless@vger.kernel.org
Subject: Slow receive with rtl8192cu (usb ew-7811Un)
Date: Sat, 14 May 2011 12:01:50 -0500	[thread overview]
Message-ID: <87pqnl5i81.fsf@raven.defaultvalue.org> (raw)


I'm seeing very slow receive rates (~63kb/s) with an EW-7811Un USB
adapter which appears to load the rtl8192cu driver.  Is that a known
problem?

I'm currently running the Debian 2.6.39-rc7-amd64 kernel from unstable;
I believe rc7 may be the first Debian kernel to work with this adapter.

I also needed to patch Debian's firmware-realtek package to include the
relevant firmware as detailed here:

  http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=625614.

With respect to the connection quality I see:

  Channel:1
  Frequency:2.412 GHz (Channel 1)
  Quality=65/70  Signal level=-45 dBm  

And during transfers "iw event -t" shows nothing other than the
occasional scan started/finished pair.

Thanks
-- 
Rob Browning
rlb @defaultvalue.org and @debian.org
GPG as of 2002-11-03 14DD 432F AE39 534D B592 F9A0 25C8 D377 8C7E 73A4

             reply	other threads:[~2011-05-14 17:11 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-05-14 17:01 Rob Browning [this message]
2011-05-16  0:50 ` Slow receive with rtl8192cu (usb ew-7811Un) Larry Finger
2011-05-16  2:26   ` Rob Browning
2011-05-16  3:39     ` Larry Finger
2011-05-16  5:18       ` Rob Browning
2011-05-16 15:12         ` Larry Finger
2011-05-17  3:41           ` Rob Browning
2011-05-17  3:57             ` Rob Browning
2011-05-17 16:34               ` Larry Finger
2011-05-17 23:04                 ` Rob Browning
2011-05-24  6:18                   ` Rob Browning
2011-06-04 20:32               ` Rob Browning
2011-06-08  2:38                 ` Rob Browning
2011-06-12 18:06                   ` Rob Browning
2011-07-10 20:24                     ` Rob Browning
2011-08-30  0:58                   ` Larry Finger

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