On Sat, Aug 25, 2012 at 3:03 AM, Xiaofan Chen <xiaof...@gmail.com> wrote:
> [ 0.518200] [000011a8] libusbx: debug [winusbx_submit_bulk_transfer]
> matched end
> point 81 with interface 0
> [ 0.518200] [000011a8] libusbx: debug [winusbx_submit_bulk_transfer]
> reading 36
> bytes
> [ 0.519200] [000011a8] libusbx: debug [usbi_add_pollfd] add fd 4 events 1
> [ 0.519200] [000011a8] libusbx: debug [libusb_get_next_timeout] next
> timeout in
> 0.999025s
> [ 0.519200] [000011a8] libusbx: debug
> [libusb_handle_events_timeout_completed] d
> oing our own event handling
> [ 0.519200] [000011a8] libusbx: debug [handle_events] poll() 2 fds with
> timeout
> in 1000ms
> [ 0.520200] [000011a8] libusbx: debug [handle_events] poll() returned 1
> [ 0.520200] [000011a8] libusbx: debug [windows_handle_events] checking fd
> 3 with
> revents = 0000
> [ 0.520200] [000011a8] libusbx: debug [windows_handle_events] checking fd
> 4 with
> revents = 0001
> [ 0.520200] [000011a8] libusbx: debug [usbi_remove_pollfd] remove fd 4
> [ 0.521200] [000011a8] libusbx: debug [windows_transfer_callback] handling
> I/O c
> ompletion with errcode 1784
> [ 0.521200] [000011a8] libusbx: error [windows_transfer_callback] detected
> I/O e
> rror: [1784] The supplied user buffer is not valid for the requested
> operation.
>
FWIW, I've finally got a chance to build and test libusb with Windows with
our software and I'm also seeing the same thing as above (I'm using
libusbK) with a mass storage device. I was so impressed that everything
else just worked though. I'm available to test anything.
Thanks,
David
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