USBD_ParseConfigurationDescriptor function (usbdlib.h)

The USBD_ParseConfigurationDescriptor routine has been deprecated. Use USBD_ParseConfigurationDescriptorEx instead.

Syntax

PUSB_INTERFACE_DESCRIPTOR USBD_ParseConfigurationDescriptor(
  [in] PUSB_CONFIGURATION_DESCRIPTOR ConfigurationDescriptor,
  [in] UCHAR                         InterfaceNumber,
  [in] UCHAR                         AlternateSetting
);

Parameters

[in] ConfigurationDescriptor

Pointer to a USB configuration descriptor that contains the interface for which to search.

[in] InterfaceNumber

Specifies the device-defined index of the interface to be retrieved. This should be set to -1 if it should not be a search criterion.

[in] AlternateSetting

Specifies the device-defined alternate-setting index of the interface to be retrieved. If the caller does not wish the alternate setting value to be a search criterion, this parameter should be set to -1.

Return value

USBD_ParseConfigurationDescriptor returns a pointer to the first interface descriptor that matches the given search criteria. If no interface matches the search criteria, it returns NULL.

Requirements

See also

USB device driver programming reference

USBD_ParseConfigurationDescriptorEx