#9762 - Vertex - Sat Aug 16, 2003 5:23 pm
Hi!
How i can communicate with the USB-Interface?
I use the following code to open the USB-Port:
If the linker connected to pc then hDevice are a number
unequally -1, thus is ok. But why i can't use DeviceIoControl
function?
Control = DeviceIoControl(hDriver,4,&lIn, 4,&lOut,4,&lSize,&gOverlapped);
Control is always = 0 :(
Can You help me?
cu olli
P.S. Sorry for my bad English i come from Germany :)
How i can communicate with the USB-Interface?
I use the following code to open the USB-Port:
| Code: |
|
hDevice = CreateFile("\\.\ezusb-0",GENERIC_WRITE Or GENERIC_READ,FILE_SHARE_WRITE Or FILE_SHARE_READ,0,OPEN_EXISTING,0,0) |
If the linker connected to pc then hDevice are a number
unequally -1, thus is ok. But why i can't use DeviceIoControl
function?
Control = DeviceIoControl(hDriver,4,&lIn, 4,&lOut,4,&lSize,&gOverlapped);
Control is always = 0 :(
Can You help me?
cu olli
P.S. Sorry for my bad English i come from Germany :)