Re: [Libusb-devel] libusb-1.0 Windows and Lakeview Research WinUSB demo

[Pete B. <pb...@gm...>]

On 20 February 2011 12:54, Xiaofan Chen <xia...@gm...> wrote:
>> Therefore I have some doubts about the following codes in windows_usb.c.
>> /*
>>  * from http://msdn.microsoft.com/en-us/library/ms793522.aspx: "The port driver
>>  * does not currently expose a service that allows higher-level drivers to set
>>  * the configuration."
>>  */
>> static int windows_set_configuration(struct libusb_device_handle
>> *dev_handle, int config)
>> {
>>        struct windows_device_priv *priv = __device_priv(dev_handle->dev);
>>        int r = LIBUSB_SUCCESS;
>>
>>        if (config >= USB_MAXCONFIG)
>>                return LIBUSB_ERROR_INVALID_PARAM;
>>
>>        r = libusb_control_transfer(dev_handle, LIBUSB_ENDPOINT_OUT |
>>                LIBUSB_REQUEST_TYPE_STANDARD | LIBUSB_RECIPIENT_DEVICE,
>>                LIBUSB_REQUEST_SET_CONFIGURATION, (uint16_t)config,
>>                0, NULL, 0, 1000);
>>
>>        if (r == LIBUSB_SUCCESS) {
>>                priv->active_config = (uint8_t)config;
>>        }
>>        return r;
>> }

Hehehe. This code was there to find out if the information from
Microsoft about set configuration should be taken to face value or
not. However, I did not expect it to cause problems when the default
configuration was used.

Will be fixing this soon. Thanks for looking into it!

Regards,

/Pete