Obtain an i2o message from the iop
struct i2o_message * i2o_msg_get_wait(struct i2o_controller * c, int wait);
c
I2O controller
wait
how long to wait until timeout
This function waits up to wait seconds for a message slot to be available.
On a success the message is returned and the pointer to the message is set in msg. The returned message is the physical page frame offset address from the read port (see the i2o spec). If no message is available returns I2O_QUEUE_EMPTY and msg is leaved untouched.