Method

FwupdPluginUsbDeviceget_custom_index

since: 2.0.0

Declaration [src]

guint8
fu_usb_device_get_custom_index (
  FuUsbDevice* self,
  guint8 class_id,
  guint8 subclass_id,
  guint8 protocol_id,
  GError** error
)

Description [src]

Gets the string index from the vendor class interface descriptor.

Available since: 2.0.0

Parameters

class_id

Type: guint8

A device class, e.g. 0xff for VENDOR.

subclass_id

Type: guint8

A device subclass.

protocol_id

Type: guint8

A protocol number.

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: guint8

A non-zero index, or 0x00 for failure.