Opening USB communication

0
votes

I'm trying to communicate with a device through a USB cable:

tmp_devid->device_handle = CreateFile(tmp_devid->device_path,
                                      GENERIC_WRITE | GENERIC_READ,
                                      FILE_SHARE_WRITE | FILE_SHARE_READ,
                                      NULL,
                                      OPEN_EXISTING,
                                      FILE_ATTRIBUTE_NORMAL | FILE_FLAG_OVERLAPPED,
                                      NULL);

which returns INVALID_HANDLE_VALUE. GetLastError() returns 5 (access denied).

The value of tmp_devid->device_path is:

path \\?\usb#vid_1fd0&pid_0001#6&944c330&0&2#{98e8484f-e727-43be-8485-4c0968976320}

What could be the problem?

1
ceclipsewindowsusbcreatefile

1 Answers

0
votes

Try to run the program with elevated privileges.