Method
FwupdPluginUsbDeviceget_interface
since: 0.2.8
Declaration [src]
FuUsbInterface*
fu_usb_device_get_interface (
FuUsbDevice* self,
guint8 class_id,
guint8 subclass_id,
guint8 protocol_id,
GError** error
)
Description [src]
Gets the first interface that matches the vendor class interface descriptor.
If you want to find all the interfaces that match (there may be other
‘alternate’ interfaces you have to use fu_usb_device_get_interfaces() and
check each one manally.
Available since: 0.2.8
Parameters
class_id-
Type:
guint8A device class, e.g. 0xff for VENDOR.
subclass_id-
Type:
guint8A device subclass.
protocol_id-
Type:
guint8A 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 aNULLGError*.The argument will be left initialized to NULLby 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: FuUsbInterface
A FuUsbInterface or NULL for not found.
| The caller of the method takes ownership of the returned data, and is responsible for freeing it. |