I don't recall ever asking about sizes. I said in my previous email that I meant "type", not "size". 'bulk_out_buffer' was 'unsigned char*', but 'bulk_in_buffer' was 'char*' in the patch. That's what I referred to. 2020. augusztus 15., szombat 22:44 keltezéssel, jaap aarts <jaap.aarts1@xxxxxxxxx> írta: > sorry forgot to reply to the question about the buffer sizes. > The reason they are different sizes (in theory) is because > I get the size for each buffer from usb_endpoint_maxp. > I do not know whether or not these are the same. If you have > any experience with these functions and know they are always > the same I am willing to make them the same size. > > [...]