cactrot

//https://hackaday.com/2018/05/24/ask-hackaday-diy-top-octave-generator/

// I thought it would be interesting to see if some kind of time/space trade off could be done with this problem.
// It compiles but you probably need an ATMEGA1284 or better to run since it needs a little over 8k ram
// It should run in constant time.
// Don't have anything to test this on.

void setup() {
  // put your setup code here, to run once:

cactrot

@@ -523,7 +523,15 @@ HID_API_EXPORT hid_device * HID_API_CALL hid_open_path(const char *path)
    dev = new_hid_device();
  
    // Open a handle to the device
    dev->device_handle = open_device(path, FALSE);
 +
 +  // If the device is a system keyboard/mouse, Windows (2k+) takes exclusive
 +  // read/write access. Feature reports can still be sent, but only if
 +  // neither read nor write access is requested.
 +  if (dev->device_handle == INVALID_HANDLE_VALUE &&