i'm developing a program with java and mainly with the api usb4java. I succeed in finding the port of the usb device . My purpose now is to write in the port (transfer data from host to the device) . I used the fonction bulk tansfer (LibUSB) but i didn't work since my device has only 1 Endpoint (IN) . After some research i find that i can replace bulktransfer by control transfer. My problem is that when i run my program , it shown in the console the error: Unable to transfer data: Invalid parameters . Can someone help me please? Thank you !
Asked
Active
Viewed 163 times
