Method
FwupdPluginUsbDevicecontrol_transfer
since: 2.0.0
Declaration [src]
gboolean
fu_usb_device_control_transfer (
  FuUsbDevice* self,
  FuUsbDirection direction,
  FuUsbRequestType request_type,
  FuUsbRecipient recipient,
  guint8 request,
  guint16 value,
  guint16 idx,
  guint8* data,
  gsize length,
  gsize* actual_length,
  guint timeout,
  GCancellable* cancellable,
  GError** error
)
Description [src]
Perform a USB control transfer.
Warning: this function is synchronous, and cannot be cancelled.
Available since: 2.0.0
Parameters
- direction
- 
            Type: FuUsbDirectionNo description available. 
- request_type
- 
            Type: FuUsbRequestTypeThe request type field for the setup packet. 
- recipient
- 
            Type: FuUsbRecipientNo description available. 
- request
- 
            Type: guint8The request field for the setup packet. 
- value
- 
            Type: guint16The value field for the setup packet. 
- idx
- 
            Type: guint16The index field for the setup packet. 
- data
- 
            Type: An array of guint8A suitably-sized data buffer for either input or output. The length of the array is specified in the lengthargument.The data is owned by the caller of the method. 
- length
- 
            Type: gsizeThe length field for the setup packet. 
- actual_length
- 
            Type: gsize*The actual number of bytes sent, or NULL.The argument will be set by the function. The argument can be NULL.
- timeout
- 
            Type: guintTimeout timeout (in milliseconds) that this function should wait before giving up due to no response being received. For an unlimited timeout, use 0. 
- cancellable
- 
            Type: GCancellableA GCancellable, orNULL.The argument can be NULL.The data is owned by the caller of the method. 
- 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.