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diff --git a/drivers/misc/mpu3050/README b/drivers/misc/mpu3050/README
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--- a/drivers/misc/mpu3050/README
+++ /dev/null
@@ -1,250 +0,0 @@
-Kernel driver mpu
-=====================
-
-Supported chips:
- * InvenSense IMU3050
- Prefix: 'mpu3050'
- Datasheet:
- PS-MPU-3000A-00.2.4b.pdf
-
- * InvenSense IMU6000
- Prefix: 'mpu6000'
- Datasheet:
- MPU-6000A-00 v1.0.pdf
-
-Author: InvenSense <http://invensense.com>
-
-Description
------------
-The mpu is a motion processor unit that controls the mpu3050 gyroscope, a slave
-accelerometer, a compass and a pressure sensor, or the mpu6000 and slave
-compass. This document describes how to install the driver into a Linux kernel
-and a small note about how to set up the file permissions in an android file
-system.
-
-Sysfs entries
--------------
-/dev/mpu
-/dev/mpuirq
-/dev/accelirq
-/dev/compassirq
-/dev/pressureirq
-
-General Remarks MPU3050
------------------------
-* Valid addresses for the MPU3050 is 0x68.
-* Accelerometer must be on the secondary I2C bus for MPU3050, the
- magnetometer must be on the primary bus and pressure sensor must
- be on the primary bus.
-
-General Remarks MPU6000
------------------------
-* Valid addresses for the MPU6000 is 0x68.
-* Magnetometer must be on the secondary I2C bus for the MPU6000.
-* Accelerometer slave address must be set to 0x68
-* Gyro and Accel orientation matrices should be the same
-
-Programming the chip using /dev/mpu
-----------------------------------
-Programming of MPU3050 or MPU6000 is done by first opening the /dev/mpu file and
-then performing a series of IOCTLS on the handle returned. The IOCTL codes can
-be found in mpu.h. Typically this is done by the mllite library in user
-space.
-
-Adding to a Kernel
-==================
-
-The mpu driver is designed to be inserted in the drivers/misc part of the
-kernel. Extracting the tarball from the root kernel dir will place the
-contents of the tarball here:
-
- <kernel root dir>/drivers/misc/mpu3050
- <kernel root dir>/include/linux/mpu.h
- <kernel root dir>/include/linux/mpu3050.h
- <kernel root dir>/include/linux/mpu6000.h
-
-After this is done the drivers/misc/Kconfig must be edited to add the line:
-
- source "drivers/misc/mpu3050/Kconfig"
-
-Similarly drivers/misc/Makefile must be edited to add the line:
-
- obj-y += mpu3050/
-
-Configuration can then be done as normal.
-
-NOTE: This driver depends on a kernel patch to drivers/char/char.c. This patch
-started to be included in most 2.6.35 based kernels.
-drivers: misc: pass miscdevice pointer via file private data
-https://patchwork.kernel.org/patch/96412/
-
----
- drivers/char/misc.c | 1 +
- 1 files changed, 1 insertions(+), 0 deletions(-)
-
-
-diff --git a/drivers/char/misc.c b/drivers/char/misc.c
-index 92ab03d..cd650ca 100644
---- a/drivers/char/misc.c
-+++ b/drivers/char/misc.c
-@@ -144,6 +144,7 @@ static int misc_open(struct inode * inode, struct file * file)
- old_fops = file->f_op;
- file->f_op = new_fops;
- if (file->f_op->open) {
-+ file->private_data = c;
- err=file->f_op->open(inode,file);
- if (err) {
- fops_put(file->f_op);
----
-
-Board and Platform Data
------------------------
-
-In order for the driver to work, board and platform data specific to the device
-needs to be added to the board file. A mpu3050_platform_data structure must
-be created and populated and set in the i2c_board_info_structure. For details
-of each structure member see mpu.h. All values below are simply an example and
-should be modified for your platform.
-
-#include <linux/mpu.h>
-
-#if defined(CONFIG_SENSORS_MPU3050) || defined(CONFIG_SENSORS_MPU3050_MODULE)
-
-#define SENSOR_MPU_NAME "mpu3050"
-
-static struct mpu3050_platform_data mpu_data = {
- .int_config = 0x10,
- .orientation = { -1, 0, 0,
- 0, 1, 0,
- 0, 0, -1 },
- /* accel */
- .accel = {
-#ifdef CONFIG_SENSORS_MPU3050_MODULE
- .get_slave_descr = NULL,
-#else
- .get_slave_descr = get_accel_slave_descr,
-#endif
- .adapt_num = 2,
- .bus = EXT_SLAVE_BUS_SECONDARY,
- .address = 0x0F,
- .orientation = { -1, 0, 0,
- 0, 1, 0,
- 0, 0, -1 },
- },
- /* compass */
- .compass = {
-#ifdef CONFIG_SENSORS_MPU3050_MODULE
- .get_slave_descr = NULL,
-#else
- .get_slave_descr = get_compass_slave_descr,
-#endif
- .adapt_num = 2,
- .bus = EXT_SLAVE_BUS_PRIMARY,
- .address = 0x0E,
- .orientation = { 1, 0, 0,
- 0, 1, 0,
- 0, 0, 1 },
- },
- /* pressure */
- .pressure = {
-#ifdef CONFIG_SENSORS_MPU3050_MODULE
- .get_slave_descr = NULL,
-#else
- .get_slave_descr = get_pressure_slave_descr,
-#endif
- .adapt_num = 2,
- .bus = EXT_SLAVE_BUS_PRIMARY,
- .address = 0x77,
- .orientation = { 1, 0, 0,
- 0, 1, 0,
- 0, 0, 1 },
- },
-};
-#endif
-
-#if defined(CONFIG_SENSORS_MPU6000) || defined(CONFIG_SENSORS_MPU6000_MODULE)
-
-#define SENSOR_MPU_NAME "mpu6000"
-
-static struct mpu3050_platform_data mpu_data = {
- .int_config = 0x10,
- .orientation = { -1, 0, 0,
- 0, 1, 0,
- 0, 0, -1 },
- /* accel */
- .accel = {
-#ifdef CONFIG_SENSORS_MPU6000_MODULE
- .get_slave_descr = NULL,
-#else
- .get_slave_descr = get_accel_slave_descr,
-#endif
- .adapt_num = 2,
- .bus = EXT_SLAVE_BUS_PRIMARY,
- .address = 0x68,
- .orientation = { -1, 0, 0,
- 0, 1, 0,
- 0, 0, -1 },
- },
- /* compass */
- .compass = {
-#ifdef CONFIG_SENSORS_MPU6000_MODULE
- .get_slave_descr = NULL,
-#else
- .get_slave_descr = get_compass_slave_descr,
-#endif
- .adapt_num = 2,
- .bus = EXT_SLAVE_BUS_SECONDARY,
- .address = 0x0E,
- .orientation = { 1, 0, 0,
- 0, 1, 0,
- 0, 0, 1 },
- },
- /* pressure */
- .pressure = {
-#ifdef CONFIG_SENSORS_MPU6000_MODULE
- .get_slave_descr = NULL,
-#else
- .get_slave_descr = get_pressure_slave_descr,
-#endif
- .adapt_num = 2,
- .bus = EXT_SLAVE_BUS_PRIMARY,
- .address = 0x77,
- .orientation = { 1, 0, 0,
- 0, 1, 0,
- 0, 0, 1 },
- },
-
-};
-#endif
-
-static struct i2c_board_info __initdata beagle_i2c_2_boardinfo[] = {
- {
- I2C_BOARD_INFO(SENSOR_MPU_NAME, 0x68),
- .irq = (IH_GPIO_BASE + MPU_GPIO_IRQ),
- .platform_data = &mpu_data,
- },
-};
-
-Typically the IRQ is a GPIO input pin and needs to be configured properly. If
-in the above example GPIO 168 corresponds to IRQ 299, the following should be
-done as well:
-
-#define MPU_GPIO_IRQ 168
-
- gpio_request(MPU_GPIO_IRQ,"MPUIRQ");
- gpio_direction_input(MPU_GPIO_IRQ)
-
-
-Android File Permissions
-========================
-
-To set up the file permissions on an android system, the /dev/mpu and
-/dev/mpuirq files needs to be added to the system/core/init/devices.c file
-inside the perms_ structure.
-
-static struct perms_ devperms[] = {
- { "/dev/mpu" ,0640, AID_SYSTEM, AID_SYSTEM, 1 },
-};
-
-Sufficient file permissions need to be give to read and write it by the system.
-
generated by cgit v1.1 at 2024-05-25 17:33:33 +0000