DLL einbinden octopus.dll

[multi-man]

Also der Init läuft ja auch durch, egal ob usb_handle nun Pointer, Pchar oder sonst ein Zeiger ist ...

Aber octopus_open kommt mit error_str "can't set configuration for given usb device" zurück ...

In der octopus.c steht :

Code:

/*
 * open octopus with a libusb dev handle
 */
int octopus_open_dev(struct octopus_context *octopus, struct usb_device *dev)
{
   if (octopus == NULL)
      octopus_error_return(-1,"octopus handle is wrong or missing");

   if (dev == NULL)
      octopus_error_return(-2,"device handle is wrong or missing");

   if (!(octopus->usb_handle = usb_open(dev)))
      octopus_error_return(-3,"can't open usb device");

   if (usb_set_configuration (octopus->usb_handle,dev->config[0].bConfigurationValue) < 0)
      octopus_error_return(-4,"Ich can't set configuration for given usb device");

   if (usb_claim_interface(octopus->usb_handle, 0)  < 0)
      octopus_error_return(-5,"can't claim interface for given usb device");

   if (usb_set_altinterface(octopus->usb_handle,0)  < 0)
      octopus_error_return(-6,"can't set altinterface for given usb device");

   return 1;
}

und usb_set configuration ist in usb.h folgendermaßen deklariert :

Code:

  int usb_set_configuration(usb_dev_handle *dev, int configuration);