qse drf wrote:
> I just installed the driver with Zadig. Yes there are two interfaces,
> interface 0 has a single endpoint and interface 1 has the two bulk end
> points. What confused me was that using libusbx I am able to use the bulk
> endpoints, but with the WinUSB API I can't.
I don't know how Zadig creates the INF file. Windows allows you to
write an INF file that claims the entire device:
%MyDeviceDesc% = install.section, USB\VID_11111&PID_2222
With that, you can get a handle to the other interfaces using
WinUSB_GetAssociatedInterface.
But Windows also allows you to write an INF that only claimes one interface:
%MyDeviceDesc% = install.section, USB\VID_11111&PID_2222&MI_00
or
%MyDeviceDesc% = install.section, USB\VID_11111&PID_2222&MI_01
If you use that option, then the system rewrites the descriptors so that
your driver doesn't even KNOW there is a second interface.
--
Tim Roberts, [email protected]
Providenza & Boekelheide, Inc.
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