Method

FwupdPluginUsbDeviceget_string_descriptor_bytes

since: 2.0.0

Declaration [src]

GBytes*
fu_usb_device_get_string_descriptor_bytes (
  FuUsbDevice* self,
  guint8 desc_index,
  guint16 langid,
  GError** error
)

Description [src]

Get a raw string descriptor from the device. The returned string should be freed with g_bytes_unref() when no longer needed. The descriptor will be at most 128 btes in length, if you need to issue a request with either a smaller or larger descriptor, you can use fu_usb_device_get_string_descriptor_bytes_full instead.

Available since: 2.0.0

Parameters

desc_index

Type: guint8

The index for the string descriptor to retrieve.

langid

Type: guint16

The language ID.

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: GBytes

A possibly UTF-16 string, or NULL on error.

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