Problems with CyUSB IOCTL Interface | Cypress Semiconductor
Problems with CyUSB IOCTL Interface
Im trying to change the drivers for our USB Devices (CY7C68013A) from EzUSB.sys to CyUSB.sys. I'm using Delphi 5, so I use the IOCTL Interface. Is there some more information about the IOCTL Interface than in CyUSB.pdf ?
Is it still possbile to use the IOCTL Ezusb Commands ?
How can I get a device Descriptor ?
I tried IOCTL_GET_DEVICE_DESCRIPTOR, but i always receive Error 87 (The parameter is incorrect.) (with GetLastError() )
I also tried IOCTL_Ezusb_GET_DEVICE_DESCRIPTOR, with the same result.
Several simple IOCTL_ADAPT commands do work, so the handle seems to be correct and the driver installed properly.
Can someone give me a hint please ?