On 2012.08.27 10:10, Xiaofan Chen wrote:
>>> It seems to me "xusb -k" does not work well with some
>>> USB Flash Drive like the Sandisk 8GB drive and a
>>> Kingston 1GB drive I have, even with a real Windows 7
>>> x64 machine.
>>
>> Yeah, I'm seeing some of those issues too.
>
> I think this is pretty normal as xusb is only a test program.

Not really. The mass storage test of xusb should work. It's there to 
demonstrate the libusbx capabilities against USB devices that are mass 
storage, and there's no real reason it should fare worse than Windows in 
that respect.

Right now, and just like your tests, I'm pretty much seeing a read 
failure against any mass storage device I try, when using the libusbK 
driver.

>>> libusbx: info [get_interface_details_filter] assigned libusb0 symbolic link 
>>> \\.\
>>> libusb0-0001
>>
>> Mmm, maybe we should set that info message to debug? What do you think?
>> Not the message is that informational after all...
>
> Yes I agree.

OK, I'll push that change later on.

Another info message that we might also want to consider setting as 
debug is the "libusbK DLL is not available, will use native WinUSB" one 
might get during init.

Personally, I think the message might be worth being flagged as info, so 
that we tell users whether the K DLL is involved at all when dealing 
with WinUSB, but on the other hand, it may not be that big a deal, as we 
would easily get that info when we ask for debug info anyway.
What would your preference be on that one?

>>> 4) libusbk.sys --> does not work well.
>>
>> Yup... I'll try to see if we can get some more info with the debug driver.
>
> Are you able to reproduce the issue? I think the debug driver should
> help.

Indeed I can. Haven't gotten around to installing the debug driver yet. 
Hopefully soon.

Regards,

/Pete


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