Bring i2o controller into hold state
int i2o_iop_clear(struct i2o_controller * c);
c
controller
Clear an IOP to HOLD state, ie. terminate external operations, clear all input queues and prepare for a system restart. IOP's internal operation continues normally and the outbound queue is alive. The IOP is not expected to rebuild its LCT.
Returns 0 on success or negative error code on failure.