i2o_block_device_lock(9) centos man page | unix.com

I2O_BLOCK_DEVICE_LOC(9) 				       Message-based devices					   I2O_BLOCK_DEVICE_LOC(9)

NAME
       i2o_block_device_lock - Locks the media of device dev

SYNOPSIS
       int i2o_block_device_lock(struct i2o_device * dev, u32 media_id);

ARGUMENTS
       dev
	   I2O device which should receive the lock request

       media_id
	   Media Identifier

DESCRIPTION
       Lock media of device dev to prevent removal. The media identifier should be set to -1, because the spec does not support any other value.

       Returns 0 on success or negative error code on failure.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						   I2O_BLOCK_DEVICE_LOC(9)