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    SubjectRe: [2.6.26-rc4] Problems with rt2x00 USB interface on powerpc
    Hi, yet again, Ivo.

    On Jun 09 2008, Ivo van Doorn wrote:
    > > Unfortunately, I don't have any kernel for which this has worked for
    > > me. I just did an experiment: I plugged the adaptor on a ia32 notebook
    > > where a rt61pci works fine (it is running Ubuntu's Hardy---well,
    > > actually, there are some problems, but I can get to that latter), but
    > > the USB key was non working with the symptoms that I described above.

    Correction here: I just went to the ia32 notebook again and, now, running
    Ubuntu's hardy kernel (which is a patched 2.6.24 kernel, AFAIK---yes, it
    is; just checked it) I could make the D-Link stick work fine.

    Unfortunately, it seems that while Ubuntu has debugfs compiled, it doesn't
    have the rt2x00 debug information compiled in the standard kernel (I will
    see if they have any debug version of their kernel---this ia32 notebook is a
    Celeron 466MHz and it is also slow at compiling kernels, just as the iBook
    is and it is my parents' only machine).

    Unfortunately, I can't get your script to run here, since I got:

    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    root@rbrito-laptop:~# LANG= bash Desktop/regdump.txt
    ls: cannot access /debug/ieee80211/phy*/rt[0-9]*/: No such file or directory
    root@rbrito-laptop:~#
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

    > That is most unfortunate, since register dumps are usually most usefull when
    > I can compare the actual register values between a working and non-working setup.
    > However I just realized I had a D-Link stick myself, and apparently I have the exact
    > same model/type. I'll compile a 2.6.26-rc5 kernel and see if that stick works for me,
    > if so, I have the working register dump. And if not, then we can rule out
    > endian problems.

    Well, I think that I was a bit hasty with my tests on ia32 and this Ubuntu
    notebook.

    Here is, BTW, the output of iwconfig on this machine, where I could get
    the stick working:

    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    root@rbrito-laptop:~# iwconfig
    lo no wireless extensions.

    wmaster0 no wireless extensions.

    ra0 IEEE 802.11g ESSID:""
    Mode:Managed Frequency:2.437 GHz Access Point:
    00:13:46:51:10:65
    Bit Rate=2 Mb/s Tx-Power=27 dBm
    Retry min limit:7 RTS thr:off Fragment thr=2346 B
    Encryption key:XXXX-XXXX-XXXX-XXXX-XXXX-XXXX-XX
    Link Quality=71/100 Signal level=-50 dBm
    Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
    Tx excessive retries:0 Invalid misc:0 Missed beacon:0

    wmaster1 no wireless extensions.

    wlan0 IEEE 802.11g ESSID:"default"
    Mode:Managed Frequency:2.437 GHz Access Point:
    00:13:46:51:10:65
    Bit Rate=54 Mb/s Tx-Power=27 dBm
    Retry min limit:7 RTS thr:off Fragment thr=2346 B
    Encryption key:XXXX-XXXX-XXXX-XXXX-XXXX-XXXX-XX
    Link Quality=47/100 Signal level=-77 dBm
    Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
    Tx excessive retries:0 Invalid misc:0 Missed beacon:0

    root@rbrito-laptop:~#
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

    Notice that the field "Link Quality" is quite lower with the USB stick.

    As you may have already noticed, I really do want to get this straightened,
    so that I can use my iBook at work and will do many things to get this to
    work well (and to have your drivers better in the short term).


    Thanks, Rogério Brito.

    P.S.: This message was written with the USB stick and an SSH connection. :-)
    --
    Rogério Brito : rbrito@{mackenzie,ime.usp}.br : GPG key 1024D/7C2CAEB8
    http://www.ime.usp.br/~rbrito : http://meusite.mackenzie.com.br/rbrito
    Projects: algorithms.berlios.de : lame.sf.net : vrms.alioth.debian.org
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