2 * Copyright (C) Intel Corporation.
4 * Author: Brendan Le Foll
6 * Copyright © 2014 Intel Corporation
8 * Permission is hereby granted, free of charge, to any person obtaining
9 * a copy of this software and associated documentation files (the
10 * "Software"), to deal in the Software without restriction, including
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12 * distribute, sublicense, and/or sell copies of the Software, and to
13 * permit persons to whom the Software is furnished to do so, subject to
14 * the following conditions:
16 * The above copyright notice and this permission notice shall be
17 * included in all copies or substantial portions of the Software.
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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25 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
33 I2C::I2C(unsigned int sda, unsigned int scl)
35 // Galileo only has one I2C device which is always /dev/i2c-0
36 // reliability is a fickle friend!
37 if (i2c_handle = open("/dev/i2c-0", O_RDWR) < 1) {
38 fprintf(stderr, "Failed to open requested i2c port");
43 I2C::frequency(int hz)
49 I2C::read(int address, char *data, int length, bool repeated)
58 if (byte = i2c_smbus_read_byte(i2c_handle) < 0) {
65 I2C::write(int address, const char *data, int length, bool repeated)