Parameters of USBControlTransferParameters come from?
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GanZhiXiong commented
Where do the values in the red box of the screenshot come from?
requestType, recipient, request, value, index, I'm just writing these arbitrary parameters, so I don't know how to write these parameters?
thegecko commented
It's from the usb specification.
http://www.jungo.com/st/support/documentation/windriver/802/wdusb_man_mhtml/node55.html