Re: [Libusb-win32-devel] Everything but usb_bulk_read works...

[Adam K. <akr...@ro...>]

On Mon, Jun 11, 2007 at 03:23:38PM +0100, Dave Higton wrote:
> > -----Original Message-----
> > From: lib...@li... 
> > [mailto:lib...@li...] On 
> > Behalf Of Guillaume Dargaud
> > Sent: 2007 June 11 15:21
> > To: lib...@li...
> > Subject: [Libusb-win32-devel] Everything but usb_bulk_read works...
> > 
> > Hello all,
> > I just took my newly formed USB code for Linux and tried it 
> > on Windows with
> > LibUsbWin32.
> > 
> > Everything seems to work fine, including the firmware upload and
> > usb_bulk_write, but usb_bulk_read returns -22.
> > 
> > Strangely i couldn't find a table of possible return error 
> > codes. Any idea ?
> 
> Error 22 is an invalid parameter.  Input endpoint addresses
> have to have the top bit set - this is incompatible with the
> Linux version.

It's not incompatible at all. Not setting that bit is a bug on any
platform. It just so happens that Linux lets you get away with it.

--Adam