Signed-off-by: Albert Zhang <xu.zhang@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Eric Andersson <eric.andersson@xxxxxxxxxxxxx> --- Documentation/ABI/testing/sysfs-i2c-bma150 | 71 +++ drivers/input/misc/Kconfig | 10 + drivers/input/misc/Makefile | 1 + drivers/input/misc/bma150.c | 684 ++++++++++++++++++++++++++++ 4 files changed, 766 insertions(+), 0 deletions(-) create mode 100644 Documentation/ABI/testing/sysfs-i2c-bma150 create mode 100644 drivers/input/misc/bma150.c diff --git a/Documentation/ABI/testing/sysfs-i2c-bma150 b/Documentation/ABI/testing/sysfs-i2c-bma150 new file mode 100644 index 0000000..16ed552 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-i2c-bma150 @@ -0,0 +1,71 @@ +What: /sys/bus/i2c/devices/<busnum>-<devaddr>/range +Date: May 2011 +Contact: Eric Andersson <eric.andersson@xxxxxxxxxxxxx> +Description: This is used to select the full scale acceleration range. The + values represent the range given as +/- G. + Possible values are: 2, 4, 8. + + Reading: returns the current acceleration range. + + Writing: sets a new acceleration range. + + +What: /sys/bus/i2c/devices/<busnum>-<devaddr>/bandwidth +Date: May 2011 +Contact: Eric Andersson <eric.andersson@xxxxxxxxxxxxx> +Description: This is used to setup the digital filtering on ADC output data. + The values represent the bandwidth given in Hz. + Possible values are: 25, 50, 100, 190, 375, 750, 1500 + + Reading: returns the current bandwidth. + + Writing: sets a new bandwidth. + + +What: /sys/bus/i2c/devices/<busnum>-<devaddr>/mode +Date: May 2011 +Contact: Eric Andersson <eric.andersson@xxxxxxxxxxxxx> +Description: This is used to set the operational mode of the chip. Possible + values are: + normal - Sets the sensor in full running mode. + sleep - Sets the sensor in deep sleep. + wakeup - Sets the sensor to low-power mode using + sequential sleep period. + + Reading: returns the current operational mode. + + Writing: sets a new operational mode. + + +What: /sys/bus/i2c/devices/<busnum>-<devaddr>/value +Date: May 2011 +Contact: Eric Andersson <eric.andersson@xxxxxxxxxxxxx> +Description: This is used to get the current acceleration values for each + axis. The values are represented as (x,y,z), where each axis can + hold a value between -512 and 511. + + Reading: returns the current acceleration values. + + +What: /sys/bus/i2c/devices/<busnum>-<devaddr>/delay +Date: May 2011 +Contact: Eric Andersson <eric.andersson@xxxxxxxxxxxxx> +Description: This is used to select the polling rate of the driver. The + value is represented in ms and can be between 0 and 200. Any + value higher than the maximum will result in the maximum. + + Reading: returns the current poll rate. + + Writing: sets a new poll rate. + + +What: /sys/bus/i2c/devices/<busnum>-<devaddr>/enable +Date: May 2011 +Contact: Eric Andersson <eric.andersson@xxxxxxxxxxxxx> +Description: This is used to enable and disable the chip. The chip will only + be disabled if there are no input device users. + + Reading: returns 1 if chip is enabled and 0 if not. + + Writing: write 1 to enable and 0 to disable the chip. + diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig index 45dc6aa..9da47fd 100644 --- a/drivers/input/misc/Kconfig +++ b/drivers/input/misc/Kconfig @@ -478,4 +478,14 @@ config INPUT_XEN_KBDDEV_FRONTEND To compile this driver as a module, choose M here: the module will be called xen-kbdfront. +config INPUT_BMA150 + tristate "BMA150 acceleration sensor support" + depends on I2C + help + Say Y here if you have Bosch Sensortec's BMA150 acceleration + sensor hooked to an I2C bus. + + To compile this driver as a module, choose M here: the + module will be called bma150. + endif diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile index 38efb2c..9b13e0e 100644 --- a/drivers/input/misc/Makefile +++ b/drivers/input/misc/Makefile @@ -45,4 +45,5 @@ obj-$(CONFIG_INPUT_WISTRON_BTNS) += wistron_btns.o obj-$(CONFIG_INPUT_WM831X_ON) += wm831x-on.o obj-$(CONFIG_INPUT_XEN_KBDDEV_FRONTEND) += xen-kbdfront.o obj-$(CONFIG_INPUT_YEALINK) += yealink.o +obj-$(CONFIG_INPUT_BMA150) += bma150.o diff --git a/drivers/input/misc/bma150.c b/drivers/input/misc/bma150.c new file mode 100644 index 0000000..596861b --- /dev/null +++ b/drivers/input/misc/bma150.c @@ -0,0 +1,684 @@ +/* + * Copyright (c) 2011 Bosch Sensortec GmbH + * Copyright (c) 2011 Unixphere + * + * This driver adds support for Bosch Sensortec's digital acceleration + * sensors BMA150 and SMB380. + * The SMB380 is fully compatible with BMA150 and only differs in packaging. + * + * The datasheet for the BMA150 chip can be found here: + * http://www.bosch-sensortec.com/content/language1/downloads/BST-BMA150-DS000-07.pdf + * + * 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/kernel.h> +#include <linux/module.h> +#include <linux/workqueue.h> +#include <linux/i2c.h> +#include <linux/input.h> +#include <linux/slab.h> +#include <linux/pm.h> + +#define SENSOR_NAME "bma150" +#define ABSMAX_ACC_VAL 0x01FF +#define ABSMIN_ACC_VAL -(ABSMAX_ACC_VAL) +#define BMA150_MAX_DELAY 200 + +#define BMA150_BW_25HZ 0 +#define BMA150_BW_50HZ 1 +#define BMA150_BW_100HZ 2 +#define BMA150_BW_190HZ 3 +#define BMA150_BW_375HZ 4 +#define BMA150_BW_750HZ 5 +#define BMA150_BW_1500HZ 6 + +#define BMA150_RANGE_2G 0 +#define BMA150_RANGE_4G 1 +#define BMA150_RANGE_8G 2 + +#define BMA150_MODE_NORMAL 0 +#define BMA150_MODE_SLEEP 2 +#define BMA150_MODE_WAKE_UP 3 + +#define BMA150_CHIP_ID 2 +#define BMA150_CHIP_ID_REG 0x00 + +#define BMA150_ACC_X_LSB_REG 0x02 + +#define BMA150_SLEEP_POS 0 +#define BMA150_SLEEP_MSK 0x01 +#define BMA150_SLEEP_REG 0x0a + +#define BMA150_BANDWIDTH_POS 0 +#define BMA150_BANDWIDTH_MSK 0x07 +#define BMA150_BANDWIDTH_REG 0x14 + +#define BMA150_RANGE_POS 3 +#define BMA150_RANGE_MSK 0x18 +#define BMA150_RANGE_REG 0x14 + +#define BMA150_WAKE_UP_POS 0 +#define BMA150_WAKE_UP_MSK 0x01 +#define BMA150_WAKE_UP_REG 0x15 + +struct bma150_data { + struct i2c_client *bma150_client; + unsigned int delay; + unsigned int sysfs_enable; + unsigned char mode; + struct input_dev *input; + struct mutex mutex; + struct delayed_work work; + + s16 x, y, z; +}; + +static const struct { + int value; + int reg; +} bw_val[] = { + { 25, BMA150_BW_25HZ }, + { 50, BMA150_BW_50HZ }, + { 100, BMA150_BW_100HZ }, + { 190, BMA150_BW_190HZ }, + { 375, BMA150_BW_375HZ }, + { 750, BMA150_BW_750HZ }, + { 1500, BMA150_BW_1500HZ }, +}; + +static const struct { + int value; + int reg; +} range_val[] = { + { 2, BMA150_RANGE_2G }, + { 4, BMA150_RANGE_4G }, + { 8, BMA150_RANGE_8G } +}; + +static const struct { + char *value; + int reg; +} mode_val[] = { + { "normal", BMA150_MODE_NORMAL }, + { "sleep", BMA150_MODE_SLEEP }, + { "wakeup", BMA150_MODE_WAKE_UP } +}; + +static int bma150_start_polling(struct input_dev *inputdev); +static void bma150_stop_polling(struct input_dev *inputdev); + +static int bma150_set_mode(struct i2c_client *client, unsigned char mode) +{ + s32 ret; + unsigned char data1, data2; + struct bma150_data *bma150 = i2c_get_clientdata(client); + + mutex_lock(&bma150->mutex); + ret = i2c_smbus_read_byte_data(client, BMA150_WAKE_UP_REG); + if (ret < 0) + goto error; + + data1 = (ret & ~BMA150_WAKE_UP_MSK) | + ((mode << BMA150_WAKE_UP_POS) & BMA150_WAKE_UP_MSK); + + ret = i2c_smbus_read_byte_data(client, BMA150_SLEEP_REG); + if (ret < 0) + goto error; + + data2 = (ret & ~BMA150_SLEEP_MSK) | + (((mode>>1) << BMA150_SLEEP_POS) & BMA150_SLEEP_MSK); + + ret = i2c_smbus_write_byte_data(client, BMA150_WAKE_UP_REG, data1); + if (ret < 0) + goto error; + + ret = i2c_smbus_write_byte_data(client, BMA150_SLEEP_REG, data2); + if (ret < 0) + goto error; + + bma150->mode = (unsigned char) mode; +error: + mutex_unlock(&bma150->mutex); + return ret; +} + +static int bma150_set_range(struct i2c_client *client, unsigned char range) +{ + s32 ret; + unsigned char data; + struct bma150_data *bma150 = i2c_get_clientdata(client); + + mutex_lock(&bma150->mutex); + ret = i2c_smbus_read_byte_data(client, BMA150_RANGE_REG); + if (ret < 0) + goto error; + + data = (ret & ~BMA150_RANGE_MSK) | + ((range << BMA150_RANGE_POS) & BMA150_RANGE_MSK); + + ret = i2c_smbus_write_byte_data(client, BMA150_RANGE_REG, data); +error: + mutex_unlock(&bma150->mutex); + return ret; +} + +static int bma150_get_range(struct i2c_client *client) +{ + s32 ret; + struct bma150_data *bma150 = i2c_get_clientdata(client); + + mutex_lock(&bma150->mutex); + ret = i2c_smbus_read_byte_data(client, BMA150_RANGE_REG); + if (ret < 0) + goto error; + + ret = (ret & BMA150_RANGE_MSK) >> BMA150_RANGE_POS; +error: + mutex_unlock(&bma150->mutex); + return ret; +} + +static int bma150_set_bandwidth(struct i2c_client *client, unsigned char bw) +{ + s32 ret; + unsigned char data; + struct bma150_data *bma150 = i2c_get_clientdata(client); + + mutex_lock(&bma150->mutex); + ret = i2c_smbus_read_byte_data(client, BMA150_BANDWIDTH_REG); + if (ret < 0) + goto error; + + data = (ret & ~BMA150_BANDWIDTH_MSK) | + ((bw << BMA150_BANDWIDTH_POS) & BMA150_BANDWIDTH_MSK); + + ret = i2c_smbus_write_byte_data(client, BMA150_BANDWIDTH_REG, data); +error: + mutex_unlock(&bma150->mutex); + return ret; +} + +static int bma150_get_bandwidth(struct i2c_client *client) +{ + s32 ret; + struct bma150_data *bma150 = i2c_get_clientdata(client); + + mutex_lock(&bma150->mutex); + ret = i2c_smbus_read_byte_data(client, BMA150_BANDWIDTH_REG); + if (ret < 0) + goto error; + + ret = (ret & BMA150_BANDWIDTH_MSK) >> BMA150_BANDWIDTH_POS; +error: + mutex_unlock(&bma150->mutex); + return ret; +} + +static void bma150_work_func(struct work_struct *work) +{ + unsigned char data[6]; + s16 x, y, z; + s32 ret; + struct bma150_data *bma150 = container_of((struct delayed_work *)work, + struct bma150_data, work); + unsigned long delay = msecs_to_jiffies(bma150->delay); + + ret = i2c_smbus_read_i2c_block_data(bma150->bma150_client, + BMA150_ACC_X_LSB_REG, 6, data); + if (ret != 6) + return; + + x = ((0xc0 & data[0]) >> 6) | (data[1] << 2); + y = ((0xc0 & data[2]) >> 6) | (data[3] << 2); + z = ((0xc0 & data[4]) >> 6) | (data[5] << 2); + + /* sign extension */ + x = (s16) (x << 6) >> 6; + y = (s16) (y << 6) >> 6; + z = (s16) (z << 6) >> 6; + + input_report_abs(bma150->input, ABS_X, x); + input_report_abs(bma150->input, ABS_Y, y); + input_report_abs(bma150->input, ABS_Z, z); + input_sync(bma150->input); + + mutex_lock(&bma150->mutex); + bma150->x = x; + bma150->y = y; + bma150->z = z; + mutex_unlock(&bma150->mutex); + + schedule_delayed_work(&bma150->work, delay); +} + +static ssize_t bma150_mode_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + int len; + int i; + struct i2c_client *client = to_i2c_client(dev); + struct bma150_data *bma150 = i2c_get_clientdata(client); + + for (i = 0, len = 0; i < ARRAY_SIZE(mode_val); i++) + len += sprintf(buf + len, + (bma150->mode == mode_val[i].reg) ? "[%s] " : "%s ", + mode_val[i].value); + + len += sprintf(buf + len, "\n"); + return len; +} + +static ssize_t bma150_mode_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + int i; + int ret; + struct i2c_client *client = to_i2c_client(dev); + struct bma150_data *bma150 = i2c_get_clientdata(client); + + for (i = 0; i < ARRAY_SIZE(mode_val); i++) + if (strncmp(mode_val[i].value, buf, + strlen(mode_val[i].value)) == 0) { + ret = bma150_set_mode(bma150->bma150_client, + mode_val[i].reg); + if (ret < 0) + return ret; + return count; + } + + return -EINVAL; +} +static ssize_t bma150_range_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + int ret; + int i; + int range; + struct i2c_client *client = to_i2c_client(dev); + struct bma150_data *bma150 = i2c_get_clientdata(client); + + range = bma150_get_range(bma150->bma150_client); + if (range < 0) + return sprintf(buf, "Read error\n"); + + for (i = 0, ret = 0; i < ARRAY_SIZE(range_val); i++) + ret += sprintf(buf + ret, + (range_val[i].reg == range) ? "[%d] " : "%d ", + range_val[i].value); + + ret += sprintf(buf + ret, "\n"); + return ret; +} + +static ssize_t bma150_range_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + unsigned long data; + int error; + int i; + struct i2c_client *client = to_i2c_client(dev); + struct bma150_data *bma150 = i2c_get_clientdata(client); + + error = strict_strtoul(buf, 10, &data); + if (error) + return error; + + for (i = 0; i < ARRAY_SIZE(range_val); i++) + if (range_val[i].value == data) { + error = bma150_set_range(bma150->bma150_client, + range_val[i].reg); + if (error < 0) + return error; + return count; + } + + return -EINVAL; +} + +static ssize_t bma150_bandwidth_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + int ret; + int i; + int bw; + struct i2c_client *client = to_i2c_client(dev); + struct bma150_data *bma150 = i2c_get_clientdata(client); + + bw = bma150_get_bandwidth(bma150->bma150_client); + if (bw < 0) + return sprintf(buf, "Read error\n"); + + for (i = 0, ret = 0; i < ARRAY_SIZE(bw_val); i++) + ret += sprintf(buf + ret, + (bw_val[i].reg == bw) ? "[%d] " : "%d ", + bw_val[i].value); + + ret += sprintf(buf + ret, "\n"); + return ret; +} + +static ssize_t bma150_bandwidth_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + unsigned long data; + int error; + int i; + struct i2c_client *client = to_i2c_client(dev); + struct bma150_data *bma150 = i2c_get_clientdata(client); + + error = strict_strtoul(buf, 10, &data); + if (error) + return error; + + for (i = 0; i < ARRAY_SIZE(bw_val); i++) + if (bw_val[i].value == data) { + error = bma150_set_bandwidth(bma150->bma150_client, + bw_val[i].reg); + if (error < 0) + return error; + return count; + } + + return -EINVAL; +} + +static ssize_t bma150_value_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct input_dev *input = to_input_dev(dev); + struct bma150_data *bma150 = input_get_drvdata(input); + + return sprintf(buf, "(%d,%d,%d)\n", bma150->x, bma150->y, + bma150->z); +} + +static ssize_t bma150_delay_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct i2c_client *client = to_i2c_client(dev); + struct bma150_data *bma150 = i2c_get_clientdata(client); + + return sprintf(buf, "%d\n", bma150->delay); + +} + +static ssize_t bma150_delay_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + unsigned long data; + int error; + struct i2c_client *client = to_i2c_client(dev); + struct bma150_data *bma150 = i2c_get_clientdata(client); + + error = strict_strtoul(buf, 10, &data); + if (error) + return error; + + if (data > BMA150_MAX_DELAY) + data = BMA150_MAX_DELAY; + + mutex_lock(&bma150->mutex); + bma150->delay = data; + mutex_unlock(&bma150->mutex); + + return count; +} + +static ssize_t bma150_enable_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct input_dev *input = to_input_dev(dev); + struct i2c_client *client = to_i2c_client(dev); + struct bma150_data *bma150 = i2c_get_clientdata(client); + + return sprintf(buf, "%d\n", + !!(bma150->sysfs_enable || input->users)); +} + +static ssize_t bma150_enable_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + unsigned long data; + int error; + struct input_dev *input = to_input_dev(dev); + struct i2c_client *client = to_i2c_client(dev); + struct bma150_data *bma150 = i2c_get_clientdata(client); + + error = strict_strtoul(buf, 10, &data); + if (error) + return error; + + if (input->users) + goto exit; + + if (data) + bma150_start_polling(input); + else + bma150_stop_polling(input); + +exit: + mutex_lock(&bma150->mutex); + bma150->sysfs_enable = !!data; + mutex_unlock(&bma150->mutex); + + return count; +} + +static DEVICE_ATTR(range, S_IRUGO|S_IWUSR|S_IWGRP, + bma150_range_show, bma150_range_store); +static DEVICE_ATTR(bandwidth, S_IRUGO|S_IWUSR|S_IWGRP, + bma150_bandwidth_show, bma150_bandwidth_store); +static DEVICE_ATTR(mode, S_IRUGO|S_IWUSR|S_IWGRP, + bma150_mode_show, bma150_mode_store); +static DEVICE_ATTR(value, S_IRUGO, bma150_value_show, NULL); +static DEVICE_ATTR(delay, S_IRUGO|S_IWUSR|S_IWGRP, + bma150_delay_show, bma150_delay_store); +static DEVICE_ATTR(enable, S_IRUGO|S_IWUSR|S_IWGRP, + bma150_enable_show, bma150_enable_store); + +static struct attribute *bma150_attributes[] = { + &dev_attr_range.attr, + &dev_attr_bandwidth.attr, + &dev_attr_mode.attr, + &dev_attr_value.attr, + &dev_attr_delay.attr, + &dev_attr_enable.attr, + NULL +}; + +static struct attribute_group bma150_attribute_group = { + .attrs = bma150_attributes +}; + +static int bma150_start_polling(struct input_dev *inputdev) +{ + struct bma150_data *dev = input_get_drvdata(inputdev); + int ret = bma150_set_mode(dev->bma150_client, BMA150_MODE_NORMAL); + if (ret < 0) + return ret; + + schedule_delayed_work(&dev->work, msecs_to_jiffies(dev->delay)); + return 0; +} + +static void bma150_stop_polling(struct input_dev *inputdev) +{ + struct bma150_data *dev = input_get_drvdata(inputdev); + cancel_delayed_work_sync(&dev->work); + bma150_set_mode(dev->bma150_client, BMA150_MODE_SLEEP); +} + +static int bma150_open(struct input_dev *inputdev) +{ + struct bma150_data *dev = input_get_drvdata(inputdev); + + if (!dev->sysfs_enable) + return bma150_start_polling(inputdev); + + return 0; +} + +static void bma150_close(struct input_dev *inputdev) +{ + struct bma150_data *dev = input_get_drvdata(inputdev); + + if (!dev->sysfs_enable) + bma150_stop_polling(inputdev); +} + +static int __devinit bma150_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct bma150_data *data; + struct input_dev *dev; + int tempvalue; + int err = 0; + + if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) { + dev_err(&client->dev, "i2c_check_functionality error\n"); + return -EIO; + } + + data = kzalloc(sizeof(struct bma150_data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + tempvalue = i2c_smbus_read_byte_data(client, BMA150_CHIP_ID_REG); + if (tempvalue != BMA150_CHIP_ID) { + dev_err(&client->dev, "BMA150 chip id error: %d\n", tempvalue); + err = -EINVAL; + goto kfree_exit; + } + i2c_set_clientdata(client, data); + data->bma150_client = client; + mutex_init(&data->mutex); + + bma150_set_bandwidth(client, BMA150_BW_50HZ); + bma150_set_range(client, BMA150_RANGE_2G); + + INIT_DELAYED_WORK(&data->work, bma150_work_func); + data->delay = BMA150_MAX_DELAY; + + dev = input_allocate_device(); + if (!dev) { + err = -ENOMEM; + goto kfree_exit; + } + + dev->name = SENSOR_NAME; + dev->id.bustype = BUS_I2C; + dev->open = bma150_open; + dev->close = bma150_close; + + input_set_capability(dev, EV_ABS, ABS_MISC); + input_set_abs_params(dev, ABS_X, ABSMIN_ACC_VAL, ABSMAX_ACC_VAL, 0, 0); + input_set_abs_params(dev, ABS_Y, ABSMIN_ACC_VAL, ABSMAX_ACC_VAL, 0, 0); + input_set_abs_params(dev, ABS_Z, ABSMIN_ACC_VAL, ABSMAX_ACC_VAL, 0, 0); + input_set_drvdata(dev, data); + + err = input_register_device(dev); + if (err < 0) { + input_free_device(dev); + goto kfree_exit; + } + + data->input = dev; + + err = sysfs_create_group(&data->input->dev.kobj, + &bma150_attribute_group); + if (err < 0) + goto error_sysfs; + + dev_info(&client->dev, "Registered BMA150 I2C driver\n"); + return 0; + +error_sysfs: + input_unregister_device(dev); +kfree_exit: + kfree(data); + return err; +} + +#ifdef CONFIG_PM +static int bma150_suspend(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + + return bma150_set_mode(client, BMA150_MODE_SLEEP); +} + +static int bma150_resume(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + + return bma150_set_mode(client, BMA150_MODE_NORMAL); +} +#endif + +static int bma150_remove(struct i2c_client *client) +{ + struct bma150_data *data = i2c_get_clientdata(client); + + sysfs_remove_group(&data->input->dev.kobj, &bma150_attribute_group); + input_unregister_device(data->input); + kfree(data); + + return 0; +} + +static SIMPLE_DEV_PM_OPS(bma150_pm, bma150_suspend, + bma150_resume); + +static const struct i2c_device_id bma150_id[] = { + { SENSOR_NAME, 0 }, + { } +}; + +MODULE_DEVICE_TABLE(i2c, bma150_id); + +static struct i2c_driver bma150_driver = { + .driver = { + .owner = THIS_MODULE, + .name = SENSOR_NAME, + .pm = &bma150_pm, + }, + .class = I2C_CLASS_HWMON, + .id_table = bma150_id, + .probe = bma150_probe, + .remove = __devexit_p(bma150_remove), +}; + +static int __init BMA150_init(void) +{ + return i2c_add_driver(&bma150_driver); +} + +static void __exit BMA150_exit(void) +{ + i2c_del_driver(&bma150_driver); +} + +MODULE_AUTHOR("Albert Zhang <xu.zhang@xxxxxxxxxxxxxxxxxxx>"); +MODULE_DESCRIPTION("BMA150 driver"); +MODULE_LICENSE("GPL"); + +module_init(BMA150_init); +module_exit(BMA150_exit); + -- 1.7.3.4 -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
