diff options
Diffstat (limited to 'drivers/misc/bmp085-i2c.c')
-rw-r--r-- | drivers/misc/bmp085-i2c.c | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/drivers/misc/bmp085-i2c.c b/drivers/misc/bmp085-i2c.c new file mode 100644 index 000000000..a7c16295b --- /dev/null +++ b/drivers/misc/bmp085-i2c.c @@ -0,0 +1,84 @@ +/* + * Copyright (c) 2012 Bosch Sensortec GmbH + * Copyright (c) 2012 Unixphere AB + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program 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 this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <linux/module.h> +#include <linux/i2c.h> +#include <linux/err.h> +#include "bmp085.h" + +#define BMP085_I2C_ADDRESS 0x77 + +static const unsigned short normal_i2c[] = { BMP085_I2C_ADDRESS, + I2C_CLIENT_END }; + +static int bmp085_i2c_detect(struct i2c_client *client, + struct i2c_board_info *info) +{ + if (client->addr != BMP085_I2C_ADDRESS) + return -ENODEV; + + return bmp085_detect(&client->dev); +} + +static int bmp085_i2c_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + int err; + struct regmap *regmap = devm_regmap_init_i2c(client, + &bmp085_regmap_config); + + if (IS_ERR(regmap)) { + err = PTR_ERR(regmap); + dev_err(&client->dev, "Failed to init regmap: %d\n", err); + return err; + } + + return bmp085_probe(&client->dev, regmap, client->irq); +} + +static int bmp085_i2c_remove(struct i2c_client *client) +{ + return bmp085_remove(&client->dev); +} + +static const struct i2c_device_id bmp085_id[] = { + { BMP085_NAME, 0 }, + { "bmp180", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, bmp085_id); + +static struct i2c_driver bmp085_i2c_driver = { + .driver = { + .owner = THIS_MODULE, + .name = BMP085_NAME, + }, + .id_table = bmp085_id, + .probe = bmp085_i2c_probe, + .remove = bmp085_i2c_remove, + + .detect = bmp085_i2c_detect, + .address_list = normal_i2c +}; + +module_i2c_driver(bmp085_i2c_driver); + +MODULE_AUTHOR("Eric Andersson <eric.andersson@unixphere.com>"); +MODULE_DESCRIPTION("BMP085 I2C bus driver"); +MODULE_LICENSE("GPL"); |