K5160
Bjørn Mork
bjorn at mork.no
Tue Mar 1 10:57:48 UTC 2016
Markus Gothe <nietzsche at lysator.liu.se> writes:
> Bjørn, what's the status of this device? Did people get it working with NDP fixes???
No, not as far as I know. You have probably seen this thread, which is
without success so far:
http://www.draisberghof.de/usb_modeswitch/bb/viewtopic.php?f=4&t=2485
There are similar (or the same?) issues with the E3372:
https://bugs.freedesktop.org/show_bug.cgi?id=94340
I don't really know what is going on here. Looks like "NDP to end" is
not the (only) problem. The symptoms are similar to what we saw when I
messed up the setup sequence: The modem silently ignores our
SET_NTB_FORMAT reuquest and continues to operate in 32bit mode. So I am
wondering if it might be a problem with our setup. Maybe the modem
doesn't like being told to do 16bit mode while the buffers are > 2^16?
If you have the hardware and can reproduce the problem, then it might be
worth trying to move the initial buffer setup before the SET_NTB_FORMAT.
Maybe cdc_ncm_setup(dev) can be moved into cdc_ncm_init(dev)? I don't
remember why I split it like that... Might have been a good reason.
Or not.
Bjørn
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