raw1394_echo_request
Name
raw1394_echo_request --
send an echo request to the driver
Synopsis
int raw1394_echo_request (raw1394handle_t handle, quadlet_t data);
Arguments
handle
libraw1394 handle
data
arbitrary data; raw1394_loop_iterate will return it
Description
the driver then send back the
same request. raw1394_loop_iterate will return data as return value,
when it processes the echo.
Returns
0 on success or -1 on failure (sets errno)