devices/rtdmnet.c : abuse RTDM api to allow sendmsg and recvmsg to be called indirectly from userland cobalt process ioctl, while rtdm_socket is created from a kernel thread.
/******************************************************************************
*
* $Id$
*
* Copyright (C) 2006-2008 Florian Pose, Ingenieurgemeinschaft IgH
*
* This file is part of the IgH EtherCAT Master.
*
* The IgH EtherCAT Master is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version 2, as
* published by the Free Software Foundation.
*
* The IgH EtherCAT Master is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
* Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with the IgH EtherCAT Master; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* ---
*
* The license mentioned above concerns the source code only. Using the
* EtherCAT technology and brand is only permitted in compliance with the
* industrial property and similar rights of Beckhoff Automation GmbH.
*
*****************************************************************************/
/**
\file
CANopen over EtherCAT SDO entry functions.
*/
/*****************************************************************************/
#include <linux/slab.h>
#include "sdo_entry.h"
/*****************************************************************************/
/** Constructor.
*/
void ec_sdo_entry_init(
ec_sdo_entry_t *entry, /**< SDO entry. */
ec_sdo_t *sdo, /**< Parent SDO. */
uint8_t subindex /**< Subindex. */
)
{
entry->sdo = sdo;
entry->subindex = subindex;
entry->data_type = 0x0000;
entry->bit_length = 0;
entry->read_access[EC_SDO_ENTRY_ACCESS_PREOP] = 0;
entry->read_access[EC_SDO_ENTRY_ACCESS_SAFEOP] = 0;
entry->read_access[EC_SDO_ENTRY_ACCESS_OP] = 0;
entry->write_access[EC_SDO_ENTRY_ACCESS_PREOP] = 0;
entry->write_access[EC_SDO_ENTRY_ACCESS_SAFEOP] = 0;
entry->write_access[EC_SDO_ENTRY_ACCESS_OP] = 0;
entry->description = NULL;
}
/*****************************************************************************/
/** Destructor.
*/
void ec_sdo_entry_clear(
ec_sdo_entry_t *entry /**< SDO entry. */
)
{
if (entry->description)
kfree(entry->description);
}
/*****************************************************************************/