### Method

# GUsb Device get_bos_descriptor

since: 0.4.0

#### Declaration

    GUsbBosDescriptor*
    g_usb_device_get_bos_descriptor (
      GUsbDevice* self,
      guint8 capability,
      GError** error
    )

#### Description

Gets the first bos_descriptor that matches the descriptor capability. If you want to find all the BOS descriptors that match (there may be other matching BOS descriptors you have to use `g_usb_device_get_bos_descriptors()` and check each one manually.

Available since: 0.4.0

#### Parameters

`capability`

  Type: `guint8`

  A BOS capability type.

`error`

  Type: `GError **`

  The return location for a recoverable error.

  The argument can be `NULL`.
  If the return location is not `NULL`, then you must initialize it to a `NULL` `GError*`.
  The argument will be left initialized to `NULL` by the method if there are no errors.
  In case of error, the argument will be set to a newly allocated `GError`; the caller will take ownership of the data, and be responsible for freeing it.

#### Return value

Type: `GUsbBosDescriptor`

A `GUsbBosDescriptor` or `NULL` for not found.

The caller of the method takes ownership of the returned data, and is responsible for freeing it.