switch-nxp-pca9548a.h

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/*
 * Copyright (c) 2014 embedded brains GmbH.  All rights reserved.
 *
 *  embedded brains GmbH
 *  Dornierstr. 4
 *  82178 Puchheim
 *  Germany
 *  <rtems@embedded-brains.de>
 *
 * The license and distribution terms for this file may be
 * found in the file LICENSE in this distribution or at
 * http://www.rtems.org/license/LICENSE.
 */
 
#ifndef _DEV_I2C_SWITCH_NXP_PCA9548A_H
#define _DEV_I2C_SWITCH_NXP_PCA9548A_H
 
#include <dev/i2c/i2c.h>
 
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
 
int i2c_dev_register_switch_nxp_pca9548a(
  const char *bus_path,
  const char *dev_path,
  uint16_t address
);
 
#define SWITCH_NXP_PCA9548A_GET_CONTROL (I2C_DEV_IO_CONTROL + 0)
 
#define SWITCH_NXP_PCA9548A_SET_CONTROL (I2C_DEV_IO_CONTROL + 1)
 
static inline int switch_nxp_pca9548a_get_control(int fd, uint8_t *val)
{
  return ioctl(fd, SWITCH_NXP_PCA9548A_GET_CONTROL, val);
}
 
static inline int switch_nxp_pca9548a_set_control(int fd, uint8_t val)
{
  return ioctl(fd, SWITCH_NXP_PCA9548A_SET_CONTROL, (void *)(uintptr_t) val);
}
 
#ifdef __cplusplus
}
#endif /* __cplusplus */
 
#endif /* _DEV_I2C_SWITCH_NXP_PCA9548A_H */