Windows USB example

[Marc van der Kamp]

Hi All,
After I found this example I was very happy and even before trying I modified it to match with my application... then I found out that device detection worked properly but write failed.
I get a proper read and write handle, no errors at write, but... it seems to send nothing.

I went back to the example changed nothing but MY_DEVICE_VIDPID and added a debug message after WriteFile to check BytesWritten
It may be clear that the protocol to my device differs, but I should at least be able to send something even when it is wrong -- or not?
If I only received an error would help already

any ideas?
Thanks

---
BytesWritten always 0

[Marc van der Kamp]

Oops... inverted my error checking, WriteFile did give an error (87)

[SibelLa]

Hi there,
I have the same error..I am wondering if you managed to fix it!!
Thanks

[SibelLa]

Hi Marc van der Kamp,

I am still getting error 87.. Have you fixed it ? I really need to make it work..
Please help me..

Many thanks

Oops... inverted my error checking, WriteFile did give an error (87)

Hi Marc van der Kamp,

I am still getting error 87.. Have you fixed it ? I really need to make it work..
Please help me..

Many thanks