[Libusb-win32-devel] usb_set_configuration error

[Andrew X. <and...@gm...>]

How come there is not control message going to the USB device when doing 
usb_set_configuration???



static int usb_get_configuration(usb_dev_handle *dev)
{
  int ret;
  char config;

  ret = usb_control_msg(dev, USB_RECIP_DEVICE | USB_ENDPOINT_IN,
                        USB_REQ_GET_CONFIGURATION ,
                        0, 0, &config, 1, LIBUSB_DEFAULT_TIMEOUT);

  if(ret >= 0)
    {
      return config;
    }

  return ret;
}




int usb_set_configuration(usb_dev_handle *dev, int configuration)
{
  DWORD sent;
  libusb_request req;

  if(dev->impl_info == INVALID_HANDLE_VALUE)
    {
      usb_error("usb_set_configuration: error: device not open");
      return -EINVAL;
    }

  req.configuration.configuration = configuration;
  req.timeout = LIBUSB_DEFAULT_TIMEOUT;

  if(!DeviceIoControl(dev->impl_info, LIBUSB_IOCTL_SET_CONFIGURATION,
                      &req, sizeof(libusb_request),
                      NULL, 0, &sent, NULL))
    {
      usb_error("usb_set_configuration: could not set config %d: "
                "win error: %s", configuration, usb_win_error_to_string());
      return -usb_win_error_to_errno();
    }

  dev->config = configuration;
  dev->interface = -1;
  dev->altsetting = -1;

  return 0;
}



----- Original Message ----- 
From: "Stephan Meyer" <ste...@we...>
To: <lib...@li...>
Sent: Wednesday, May 03, 2006 3:47 PM
Subject: Re: [Libusb-win32-devel] simple example on bulkread/bulkwrite?


>
>> Does anyone have a simple example of bulkread/bulkwrite?
>>
>
> see attachment.
>
>>
>> Also, why no name show up for the device in the device manager? I ran the 
>> info maker and put in some names, but it did not show up on the device 
>> manager, I am running winxp.
>>
>>
>>
>> thanks
>>
>> Andrew
>>
>>
>
>
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