ieee1284_claim — claim access to the port
#include <ieee1284.h>
int ieee1284_claim( | port); |
struct parport * | port; |
With the exception of ieee1284_get_deviceid(3), ieee1284_claim must be
called on an open port before any other libieee1284
function for accessing a device on it.
Success. Note that, unless the
F1284_EXCL flag was specified to
start with, the port should be released within a
“reasonable” amount of time.
There is not enough memory.
The port parameter is
invalid (for instance, it might not have been opened
yet).
There was a problem at the operating system
level. The global variable errno
has been set appropriately.