Re: [libusb] windows isochronous transfer

[Sameeh J. <sa...@da...>]

On Thu, Nov 23, 2017 at 10:40 AM, Sameeh Jubran <sa...@da...> wrote:

>
>
> On Thu, Nov 23, 2017 at 9:25 AM, Accio via libusb-devel <
> lib...@li...> wrote:
>
>> Can you give me some more details about using UsbDk?
>>
>> I've:
>>
>> - compiled and installed (MinGW) the libusb enabling usbdk
>> (--enable-usbdk)
>>
>> - installed the official usbdk msi
>>
>> - executed UsbDkController -i to install usbdk driver
>>
> Installing the msi is sufficient, you don't need to run "UsbDkController
-i" too, the installer already does this.
When UsbDk is installed the UsbDk.sys driver attaches itself to usb stacks,
you can easily make sure that it is successfully loaded by
going to device manager-> choose a USB device (preferably not a composite),
right click and choose properties -> go to "Driver" tab -> click on "driver
details"
UsbDk should show up in the list, if it doesn't it means it is not loaded
for this device.

> After this my application no longer gives "unsupported" error but after a
>> while freezes the system (I need to restart by power button) giving no
>> errors.
>>
> Which version of UsbDk are you using?
> please make sure you are using the latest release which can be found here:
> https://github.com/daynix/UsbDk/releases
> Which Windows version are you using?
> Can you provide libusb debug log?
>
>>
>> There's some passage I've missed?
>>
>> There's something I can try?
>>
>>
>>
>> On 22/11/2017 21:12, Sameeh Jubran wrote:
>>
>> You can try and use UsbDk as a backend instead of WinUsb, it supports
>> isochronous transfers.
>>
>> On Nov 22, 2017 22:06, "Tim Roberts" <ti...@pr...> wrote:
>>
>>> Accio via libusb-devel wrote:
>>> >
>>> > does actual (v1.0.21) version supports isochronous transfer on Windows
>>> > out of the box?
>>> >
>>> > I've compiled the library under MinGw, all other stuffs works flawless
>>> > but isochronous transfer gives 'LIBUSB_ERROR_NOT_SUPPORTED' on the
>>> > libusb_submit_transfer.
>>>
>>> May I ask why you are using isochronous?  There are very, very few
>>> compelling use cases for isochronous pipes, and those use cases are
>>> generally covered by system-supplied drivers.
>>>
>>> --
>>> Tim Roberts, ti...@pr...
>>> Providenza & Boekelheide, Inc.
>>>
>>>
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>>>
>>
>>
>> ------------------------------------------------------------------------------
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>>
>>
>>
>> _______________________________________________
>> libusb-devel mailing lis...@li...://lists.sourceforge.net/lists/listinfo/libusb-devel
>>
>>
>>
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>>
>
>
> --
> Respectfully,
> *Sameeh Jubran*
> *Linkedin <https://il.linkedin.com/pub/sameeh-jubran/87/747/a8a>*
> *Software Engineer @ Daynix <http://www.daynix.com>.*
>



-- 
Respectfully,
*Sameeh Jubran*
*Linkedin <https://il.linkedin.com/pub/sameeh-jubran/87/747/a8a>*
*Software Engineer @ Daynix <http://www.daynix.com>.*