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BMI160 is an Inertial Measurement Unit (IMU) which provides acceleration and angular rate measurement. It also offers a secondary I2C interface for connecting a magnetometer sensor (usually BMM160). Current driver offers support for accelerometer and gyroscope readings via sysfs or via buffer interface using an external trigger (e.g. hrtimer). Data is retrieved from IMU via I2C or SPI interface. Datasheet is at: http://www.mouser.com/ds/2/783/BST-BMI160-DS000-07-786474.pdf Signed-off-by: Daniel Baluta <daniel.baluta@intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
73 lines
1.7 KiB
C
73 lines
1.7 KiB
C
/*
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* BMI160 - Bosch IMU, I2C bits
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*
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* Copyright (c) 2016, Intel Corporation.
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*
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* This file is subject to the terms and conditions of version 2 of
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* the GNU General Public License. See the file COPYING in the main
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* directory of this archive for more details.
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*
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* 7-bit I2C slave address is:
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* - 0x68 if SDO is pulled to GND
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* - 0x69 if SDO is pulled to VDDIO
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*/
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#include <linux/module.h>
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#include <linux/i2c.h>
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#include <linux/regmap.h>
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#include <linux/acpi.h>
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#include "bmi160.h"
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static int bmi160_i2c_probe(struct i2c_client *client,
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const struct i2c_device_id *id)
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{
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struct regmap *regmap;
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const char *name = NULL;
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regmap = devm_regmap_init_i2c(client, &bmi160_regmap_config);
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if (IS_ERR(regmap)) {
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dev_err(&client->dev, "Failed to register i2c regmap %d\n",
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(int)PTR_ERR(regmap));
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return PTR_ERR(regmap);
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}
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if (id)
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name = id->name;
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return bmi160_core_probe(&client->dev, regmap, name, false);
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}
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static int bmi160_i2c_remove(struct i2c_client *client)
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{
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bmi160_core_remove(&client->dev);
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return 0;
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}
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static const struct i2c_device_id bmi160_i2c_id[] = {
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{"bmi160", 0},
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{}
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};
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MODULE_DEVICE_TABLE(i2c, bmi160_i2c_id);
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static const struct acpi_device_id bmi160_acpi_match[] = {
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{"BMI0160", 0},
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{ },
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};
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MODULE_DEVICE_TABLE(acpi, bmi160_acpi_match);
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static struct i2c_driver bmi160_i2c_driver = {
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.driver = {
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.name = "bmi160_i2c",
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.acpi_match_table = ACPI_PTR(bmi160_acpi_match),
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},
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.probe = bmi160_i2c_probe,
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.remove = bmi160_i2c_remove,
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.id_table = bmi160_i2c_id,
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};
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module_i2c_driver(bmi160_i2c_driver);
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MODULE_AUTHOR("Daniel Baluta <daniel.baluta@intel.com>");
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MODULE_DESCRIPTION("BMI160 I2C driver");
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MODULE_LICENSE("GPL v2");
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