Peter,
Could you please elaborate on :
"you could uninstall the filter driver and then replace the WUDFRD with
WinUSB?"
what do I do on Linux?
Thanks.
John
On Mon, Jul 16, 2012 at 12:00 PM, Pete Batard <p...@akeo.ie> wrote:
> On 2012.07.16 19:29, John Chen wrote:
> > Yes, you are right, this is a custom device
>
> OK.
>
> > do you know what I should do to map
> > the DeviceIoControl to libusb_control_transfer in this case?
>
> The purpose of libusb/libusbx is to abstract OS dependent calls, so it
> is not possible to mix OS specific calls with libusb/libusbx ones.
> Hopefully, we can figure out why the libusb/libusbx call fails and help
> you gain access to the device
>
> > BTW , the output from xusb is as following:
> >
> > C:\Downloads\libusbx-1.0.12-win\examples\bin64>xusb -d 8086:1138
> > Using libusbx v1.0.12.10532
>
> Good, it seems to fail in the same way.
>
> > [ 0.310062] [000009c0] libusbx: debug [get_api_type] driver(s): WUDFRD
> > [ 0.311062] [000009c0] libusbx: debug [get_api_type] lower filter
> > driver(s): WINUSB
> > [ 0.311562] [000009c0] libusbx: debug [get_api_type] matched lower
> > filter driver name against WinUSB API
> > [ 0.312562] [000009c0] libusbx: debug [windows_get_device_list] found
> > existing device for session [C5] (6.1)
>
> As Tim pointed out, you seem to be using WinUSB as a filter driver.
>
> This may explain a few things (and I don't recall seeing that mentioned
> in your previous log).
> I don't recall WinUSB as a filter driver was extensively tested since it
> was added, almost 2 years ago. At least I don't remember running any
> more tests with WinUSB as a filter driver since then.
>
> For the time being, is there any way you could uninstall the filter
> driver and then replace the WUDFRD with WinUSB?
>
> I'll try to find out if filter driver support for WinUSB may have been
> broken in the past 2 years, but this may take some time.
>
> Regards,
>
> /Pete
>
>
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