On Mon, Aug 27, 2012 at 7:21 AM, Pete Batard <p...@akeo.ie> wrote:
> On 2012.08.25 10:52, 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.

>> The strange thing is that
>> libusbk.sys behaves differently from winusb.sys and libusb0.sys.
>
> Indeed...
>
>> 1) libusb-win32 filter driver + original Windows driver usbstor.sys
>> --> works fine, with a few warning messages
>>
>> Claiming interface 0...
>> libusbx: error [winusbx_claim_interface] could not access interface 0: [50] 
>> The
>> request is not supported.
>
> Oh, right, I was planning to address that one.
> This error message should have been silenced after we added support for
> the filter driver, as this is not really an issue if we manage to find
> the filter. I have now pushed a commit to fix this.

I will try the latest git later.

>> 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.

>> 3) libusb0.sys --> works fine, with one warning message
>>
>> Reading string descriptors:
>>     String (0x01): "Generic"
>>     String (0x02): "Flash Disk"
>> libusbx: error [winusbx_submit_control_transfer] ControlTransfer failed: 
>> [31] A
>> device attached to the system is not functioning.
>
> Yeah, I think that's the same issue I mentioned when querying string
> descriptor 0xEE for WCID. Only seems to occur with libusb0.sys (either
> filter or regular)

Okay, I will try out the debug version of libusb0.sys driver to see if this is
an issue with libusb0.sys or not.

>> 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.

-- 
Xiaofan

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