Is there any USB2.0 data transfer chunk size limit?

Posted by goldenmean on Super User See other posts from Super User or by goldenmean
Published on 2009-12-09T04:53:43Z Indexed on 2010/03/25 6:03 UTC
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usb

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data-transfer

With one read() or write() at a time, can we increase the bulk data size over USB interface? For example, I want to transfer chunk of 1024 (1K) bytes data and if the device has limitations of only 64bytes, is there any way I can increase the packet size for read() and write() system call over USB?

Is there any limitation on size of data transfer over USB in a host->device environment?

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