Broadcom Wireless Drivers

Discussion in 'Tomato Firmware' started by eahm, Mar 27, 2013.

  1. eahm

    eahm LI Guru Member

    Just noticed the new N66U beta fw (Beta Version has 1. Upgrade to latest Broadcom driver.

    RMerlin or Shibby which version/build are these drivers? Already tested them? Improvements?

  2. RMerlin

    RMerlin Network Guru Member

    These are from the newest Broadcom SDK (5.110).

    I haven't tested the RT-N66U driver, only the RT-AC66U (which is also a newer one). The initial feedback for the new driver was quite positive. A few users started reporting issues since then, but since I see people reporting issues with all their devices rather than just one specific device, I suspect it's not an issue with the driver itself but probably with their settings. I've seen a few of these have resolved those new issues simply by resetting back to factory defaults. Possible that they had some tweaked settings that were negatively affecting the new driver.

    Asus released the firmware as beta, so it's also possible there might still be some tweaks left for them to do before the final release.

    Personally, I intend to make the switch to these new drivers.
    bestcow and eahm like this.
  3. Victek

    Victek Network Guru Member

    I'm comfortable and no issues reported for the wifi drivers used in Tomato RAF, but I will like to follow the topic and compare statistics for the new ones.

    Thanks for the info.
  4. RMerlin

    RMerlin Network Guru Member

    If you wanted the actual build version:

    admin@RT-N66U:/tmp/mnt/sda1/www# wl ver
    5.110 RC27.20012
    wl0: Jan 23 2013 14:32:57 version
    Regarding the XBox fix: did you (Tomato folks) get reports of wireless issues related to the XBox 360? If yes, Asus's "Optimize for XBox" option simply changes an option in the driver's reported caps. Not sure if the option is new to these drivers, but you could also give it a try with the older driver:

                            if (nvram_match(strcat_r(prefix, "optimizexbox", tmp), "1"))
                                    eval("wl",  "-i", ifname, "ldpc_cap", "0");
    ifname would be eth1 or eth2.
  5. Elfew

    Elfew Network Guru Member

    Benchmark would be nice... Test speeds with older and new driver
  6. Victek

    Victek Network Guru Member

    RMerlin, not, no issues received till now.

  7. RMerlin

    RMerlin Network Guru Member

    I have some Lanbench test results sitting on my laptop at home. They aren't really scientific (I did a few tests back in the 220 days and saved them to a text file, and redid similar tests months later when I got an earlier beta of the driver used in 354), but I can post the numbers. They showed an increase in throughput in my particular case.
  8. Elfew

    Elfew Network Guru Member

    Ok, thank you!
  9. RMerlin

    RMerlin Network Guru Member

    These are the notes I kept over time. The 354 benchmarks were made a few months later.

    5 GHz (fixed channel 149, 80 MHz):
    220: 140 Mbits
    246: 120-160 Mbits (was highly variable)
    354: 164 Mbits
    220: 104 Mbits
    246: 95 Mbits
    354: 108 Mbits

    The tests were made using Lanbench, testing one single stream in one direction at a time. The laptop has an Intel Centrino 6230, and was a few meters away from an RT-AC66U (but still in the same room). The remote end is my desktop connected over Gigabit Ethernet.
    Victek, Elfew, octra and 1 other person like this.
  10. Elfew

    Elfew Network Guru Member

    Thank you
    Any results for 2.4ghz?
  11. Victek

    Victek Network Guru Member

    Sometimes environment conditions and wireless card used makes some test not conclusive but at least you show some reference using the same hardware. If I can help you testing with other devices let me know.

  12. RMerlin

    RMerlin Network Guru Member

    Sorry, I didn't keep any 2.4 GHz numbers from those older versions.

    @Victek: I agree. These numbers shouldn't be taken as hard evidence. For starter, they are for the RT-AC66U, which is a different device, with a different driver (the one). The fact there was a few months between both tests can have an impact as well. Router antennas might have been moved since the original tests. If anything, they at least show that nothing seems to be seriously broken.

    If you want to experiment with the 5.110 driver, they are already on my Github repo. Just grab the wl binary blobs, and give it a shot.
  13. RMerlin

    RMerlin Network Guru Member

    So after testing and gathering feedback, here's the current situation:

    - The RT-AC66U driver is a good improvement. This, however, is of no help to Tomato.
    - The RT-N66U driver introduces a lot of issues on the 5 GHz band. My Intel Centrino 6230 won't even connect to it, unless I drop channel width to 20 MHz. Various users are also reporting issues with the 5 GHz (a few with the 2.4 GHz band as well, but nowhere as many).

    So, the current 5.110 build is a step backward compared to the 5.100 version currently in use by Tomato. I would wait for Asus to release an update before considering switching to it for Tomato. I'll try to get in touch with my contact to see what he knows about these issues.
    Elfew likes this.
  14. bwq518

    bwq518 Networkin' Nut Member

    When will shibby upgrade wireless driver in his branch shibby-RT-N ?

  15. Elfew

    Elfew Network Guru Member

    Please read it again ;) You question is pointless!
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