raw1394_set_port

Arguments

Description

This function connects the handle to the port given (as queried with raw1394_get_port_info). If successful, raw1394_get_port_info and raw1394_set_port are not allowed to be called afterwards on this handle. To make up for this, all the other functions (those handling asynchronous and isochronous transmissions) can now be called.

Returns

0 for success or -1 for failure with errno set appropriately. A possible failure mode is with errno = ESTALE, in this case the configuration has changed since the call to raw1394_get_port_info and it has to be called again to update your view of the available ports.