Re: [Libusb-win32-devel] usb_bulk_read error

[RayS <ra...@bl...>]

BTW, has there been a recent release? I had been using snapshots with 
a Texas Instruments demo board (it uses PORUS as its USB stack; we 
also saw numerous asych errors, related or not), now on hold. I'd 
like to test again soon when I can; it would be nice to verify the 
open source driver with the OS stack...

Not directly related to libusb, but bulk, we had problems with 
another vendor's (Eagle) bulk USB ADC device when using the new Core 
Duo chipsets, they had switched from isochronus that was in their 
last product and we saw corruption at high request rates.

Ray

At 09:44 AM 2/23/2007, you wrote:
>It seems to be the same problem as this one:
>
>http://www.nabble.com/-Libusb-win32-devel--usb_interrupt_write--%3E-ENOMEM---tf2163265.html#a5981319
>
>Which verison of libusb-win32 and which compiler are you using?
>
>Stephan
>
>
> > Guys,
> >
> > I have been writing firmware and PC end stubs for a USB-based
> > development board. It has come to my attention that there may be a
> > problem with the firmware that I have written.
> >
> > I receive the following error message upon calling usb_bulk_read:
> >
> > Bulk Read Vendor Request failed (-12).
> > usb_submit_async: error: Not enough storage is available to process this
> > command
> >
> > Should I take this on face value, or is there something deeper going on
> > here? How should I modify my firmware in lieu of this fact? I would be
> > grateful if someone could shed some light on this situation.
> >
> > Thank you,
> >          Gavin Brewer.
> >
> >
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