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We have a vendor-specific device for USB connections.

We used LibUsbDotNet Bulk Transfer communication. In the first case, I did 64 byte data transfer. In the second case I made 1024 byte data transfer. In case of 64 byte transfer, there is usually no problem (Problems are rare). In case of 1024 byte transfer, there is a problem (almost always in USB 2.0 port, also rare in USB 3.0 port).

What causes to this problem?

srhnylmz
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1 Answers1

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When data is in multiple of 512 bytes, add an extra dummy byte to the data. So if you are transferring 1025 bytes your problem will be solved.

abhijitN
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