[libhid-discuss] libhid::error sending control message: Protocol error !!

[Mohamed Ait Ouaziz]

2011/2/25 Peter Stuge <peter at stuge.se>

> Mohamed Ait Ouaziz wrote:
> > > > I try to write a user-space driver to control a usb device.
> > >
> > > Do you know how you will communicate with the device on top of USB?
>
> Do you?
>

Actually i don't. My understanding is that  i after opening the device i
will send and receive reports!!


>
>
> > > Separate from that, could you post lsusb -v output for the device?
>
> Thanks for posting this. Indeed the device has a HID class interface,
> but possibly libhid is sending some HID class request to the device,
> which could legitimately fail.
>
> Strongly recommend using HIDAPI. http://www.signal11.us/oss/hidapi/
>

I will look at this and come back to you.


>
> //Peter
>
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>

Thank you for your time.

Mohamed.
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