RTEMS: cpukit/include/dev/i2c/switch-nxp-pca9548a.h Source File

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switch-nxp-pca9548a.h
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1
9/*
10 * Copyright (c) 2014 embedded brains GmbH. All rights reserved.
11 *
12 * embedded brains GmbH
13 * Dornierstr. 4
14 * 82178 Puchheim
15 * Germany
16 * <rtems@embedded-brains.de>
17 *
18 * The license and distribution terms for this file may be
19 * found in the file LICENSE in this distribution or at
20 * http://www.rtems.org/license/LICENSE.
21 */
22
23#ifndef _DEV_I2C_SWITCH_NXP_PCA9548A_H
24#define _DEV_I2C_SWITCH_NXP_PCA9548A_H
25
26#include <dev/i2c/i2c.h>
27
28#ifdef __cplusplus
29extern "C" {
30#endif /* __cplusplus */
31
42int i2c_dev_register_switch_nxp_pca9548a(
43 const char *bus_path,
44 const char *dev_path,
45 uint16_t address
46);
47
48#define SWITCH_NXP_PCA9548A_GET_CONTROL (I2C_DEV_IO_CONTROL + 0)
49
50#define SWITCH_NXP_PCA9548A_SET_CONTROL (I2C_DEV_IO_CONTROL + 1)
51
52static inline int switch_nxp_pca9548a_get_control(int fd, uint8_t *val)
53{
54 return ioctl(fd, SWITCH_NXP_PCA9548A_GET_CONTROL, val);
55}
56
57static inline int switch_nxp_pca9548a_set_control(int fd, uint8_t val)
58{
59 return ioctl(fd, SWITCH_NXP_PCA9548A_SET_CONTROL, (void *)(uintptr_t) val);
60}
61
64#ifdef __cplusplus
65}
66#endif /* __cplusplus */
67
68#endif /* _DEV_I2C_SWITCH_NXP_PCA9548A_H */
i2c.h
Inter-Integrated Circuit (I2C) Driver API.