[libhid-discuss] Inconsistency while reading data from the usb device

shiva vadla shiva473 at gmail.com
Mon Dec 13 19:55:23 UTC 2010


Here is the code. I am using java to load the libhid library and talk to the
device.

    LibHid libHid = LibHid.libHid;

     libHid.hid_set_debug(HIDDebugLevel.ALL);
     libHid.hid_init();
     LibHid.HIDInterfaceMatcher hidMatcher = new
LibHid.HIDInterfaceMatcher((short) 0x0801, (short) 0x0011, null, null, 0);
     libHid.hid_force_open(hidInterface, 0, hidMatcher, (short) 3);
     libHid.hid_interrupt_read(hidInterface, 0x81, output, 887, 0);
    libHid.hid_close(hidInterface);
    libHid.hid_delete_HIDInterface(hidInterface);
    libHid.hid_cleanup()

Thanks!

On Sat, Dec 11, 2010 at 2:52 AM, Manuel F Martinez <manpaz at bashlinux.com>wrote:

> Good to hear that, anyways, feel free to post your code if you still want
> to try CentOS, I'll be happy to help.
> I successfully build apps for some USB devices on CentOS 5 with 2.6.18
> kernel.
>
> Thanks,
>
>
> On Fri, Dec 10, 2010 at 8:24 AM, shiva vadla <shiva473 at gmail.com> wrote:
>
>> I think it's the kernel issue. I was trying it on CentOs 2.6.18 and it
>> wasn't working. But when I tried on OpenSuse 11.3, it works fine. Thanks all
>> for your help.
>>
>>
>> On Fri, Dec 10, 2010 at 1:11 AM, Manuel F Martinez <manpaz at bashlinux.com>wrote:
>>
>>> Are you able to post your code?  maybe it can help everyone to see what
>>> you are trying to accomplish.
>>>
>>> Thanks,
>>>
>>>
>>> On Thu, Dec 9, 2010 at 7:27 PM, Xiaofan Chen <xiaofanc at gmail.com> wrote:
>>>
>>>> On Fri, Dec 10, 2010 at 1:48 AM, shiva vadla <shiva473 at gmail.com>
>>>> wrote:
>>>> >> Just a guess, what if you reset the hid interface before closing
>>>> >> the interface?
>>>> >>
>>>> >
>>>> > Thanks for the response. I have just tried that, but I still see the
>>>> same
>>>> > issue. Any suggestions?
>>>> >
>>>>
>>>> Sorry I have no idea. Maybe you want to ask in the Linux usb mailing
>>>> list cause I do not think this is a libhid/libusb issue, but rather a
>>>> usb device issue. They will probably ask you to provide the
>>>> usbmon log or things like that.
>>>>
>>>>
>>>> --
>>>> Xiaofan
>>>>
>>>> _______________________________________________
>>>> libhid-discuss mailing list
>>>> libhid-discuss at lists.alioth.debian.org
>>>> http://lists.alioth.debian.org/mailman/listinfo/libhid-discuss
>>>> http://libhid.alioth.debian.org/
>>>>
>>>
>>>
>>>
>>> --
>>> Manuel F Martinez
>>> Linux Systems Engineer
>>>
>>
>>
>>
>> --
>> Shiva
>>
>
>
>
> --
> Manuel F Martinez
> Linux Systems Engineer
>



-- 
Shiva
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