rt73usb? Or something else?

Live forum: http://rt2x00.serialmonkey.com/viewtopic.php?t=4375

fiooer

23-10-2007 21:08:33

Hey,

I was using the rt73 legacy driver up till now, which worked
great with great speed as well (190-200 kbs), though no WPA.

I tried installing the CVS snapshot on my Archlinux 2.6.23 based kernel, with no success.

So I downloaded the rt2x00 git and installed it.

Now, when running with this kernel, I loaded the rt73usb module, got both wmaster and wlan0 and managed to connect.

Problems are
The speed is significantly slower - from 190-200 kbs, I am getting now only 60-80 kbs.

After a few minutes of usage the CPU is overloaded, and the operation of the laptop gets slower (including mouse movement as well).

Questions are
Is there a way to compile the CVS driver on the 2.6.23 archlinux kernel?
Am I using the right driver? Is rt73usb the thing I am looking for, or maybe rt2x00usb?

Any help will be appreciated,
Thanks,
Fiod

IvD

23-10-2007 21:55:24


Is there a way to compile the CVS driver on the 2.6.23 archlinux kernel?
[/quote2ma0k9j5]

A good start would be creating a post on the rt73 legacy forum regarding the compilation errors you encounter during compilation. That way things get a chance to get fixed.


Am I using the right driver? Is rt73usb the thing I am looking for, or maybe rt2x00usb?
[/quote2ma0k9j5]

rt2x00usb is a library used by rt73usb. So yes, rt73 should be the correct driver. Posting debug information would off course help in debugging the problem.

fiooer

24-10-2007 17:06:00

Hey,

Thanks for the reply.

I was unclear
The rt73 legacy driver compiles perfectly on 2.6.23 arch kernel.

The problem is compiling the CVS rt2x00 driver.

Anyhow, the main problem while using rt73usb (not the legacy rt73) is with the speed as I mentioned.

Thanks a lot
Fiod

AdamBaker

24-10-2007 19:45:27

What speed does iwconfig report for rt73usb (That will be the speed that the RT73 should transmit at)?

The speed should start low and increase with use - do you wait until it has increased?

Do you have any way to find out what speed your access point is selecting (that will be the speed that the RT73 should receive at)?

Does the poor speed apply in both receive and transmit directions?

How far from the access point are you - are you able to see if the poor speed is distance related?

Building the CVS driver is currently non trivial as it needs lots of changes that are in newer versions of the mac80211 stack.

fiooer

26-10-2007 11:05:31

Hey

Thanks a lot for the reply.

I am posing the iwconfig information of the rt73 legacy driver and the rt73usb driver

rt73 legacy
[codey41uc4x2]
wlan0 RT73 WLAN ESSID:"G-HOME"
Mode:Managed Frequency=2.437 GHz Access Point: 00:60:B3:5A:0F:45
Bit Rate=24 Mb/s
RTS thr:off Fragment thr:off
Link Quality=56/100 Signal level:-76 dBm Noise level:-115 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
[/codey41uc4x2]

And the rt2x00 based rt73usb driver
[codey41uc4x2]
wlan0 IEEE 802.11g ESSID:"G-HOME"
Mode:Managed Frequency:2.437 GHz Access Point: 00:60:B3:5A:0F:45
Bit Rate=5.5 Mb/s Tx-Power=27 dBm
Retry min limit:7 RTS thr:off Fragment thr=2346 B
Link Quality=88/100 Signal level=-72 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
[/codey41uc4x2]

When downloading a file from a close server, the rt73 legacy driver settles on about 180-200 kbs. And when downloading a file using the rt73usb driver the speed settles on about 60 kbs.

But thats not whats worst
The computer slows down after a few minutes of use, and eventually freezes.

I have no way of knowing that information from my AP.
What I do know is that when I sit at the same location at my house, use the rt73 legacy driver - I get a certain (high) speed. And when I "rmmod rt73, modprobe rt73usb", the new speed is much slower. When I "rmmod rt73usb, rmmod rt2x00, modprobe rt73" - the speed jumps back up.

Thanks again for the help,
Fiod

kleverness

02-11-2007 06:32:07

Hi! I'm new here... I just writing to report that I manage to get rt73 working perfectly. I'm running Ubuntu 7.10 and the only way to get rid of problems was to install vanilla kernel 2.6.24-rc1 and get latest the rt2x00 snapshot. It was not an easy task but know I have no more strange errors which freeze my connection, and speed isn't a problem anymore. Thanks for your wonderful work and I hope Ubuntu get patched soon so everyone can get rt73 working correctly out of the box. NetworkManager works great with the module, except speed is reported incorrectly, but is a minor issue.

Bye and thanks again. D

Luciano.