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Dmytro Bagrii 86acdc1791 platform/x86: dell-lis3lv02d: Add Latitude 5400 
[ Upstream commit a5b9fdd33c ]

Add accelerometer address 0x29 for Dell Latitude 5400.

The address is verified as below:

    $ cat /sys/class/dmi/id/product_name
    Latitude 5400

    $ grep -H '' /sys/bus/pci/drivers/i801_smbus/0000\:00*/i2c-*/name
    /sys/bus/pci/drivers/i801_smbus/0000:00:1f.4/i2c-10/name:SMBus I801 adapter at 0000:00:1f.4

    $ i2cdetect 10
    WARNING! This program can confuse your I2C bus, cause data loss and worse!
    I will probe file /dev/i2c-10.
    I will probe address range 0x08-0x77.
    Continue? [Y/n] Y
         0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
    00:                         08 -- -- -- -- -- -- --
    10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
    20: -- -- -- -- -- -- -- -- -- UU -- -- -- -- -- --
    30: 30 -- -- -- -- 35 UU UU -- -- -- -- -- -- -- --
    40: -- -- -- -- 44 -- -- -- -- -- -- -- -- -- -- --
    50: UU -- 52 -- -- -- -- -- -- -- -- -- -- -- -- --
    60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
    70: -- -- -- -- -- -- -- --

    $ xargs -n1 -a /proc/cmdline | grep ^dell_lis3lv02d
    dell_lis3lv02d.probe_i2c_addr=1

    $ dmesg | grep lis3lv02d
    ...
    [  206.012411] i2c i2c-10: Probing for lis3lv02d on address 0x29
    [  206.013727] i2c i2c-10: Detected lis3lv02d on address 0x29, please report this upstream to platform-driver-x86@vger.kernel.org so that a quirk can be added
    [  206.240841] lis3lv02d_i2c 10-0029: supply Vdd not found, using dummy regulator
    [  206.240868] lis3lv02d_i2c 10-0029: supply Vdd_IO not found, using dummy regulator
    [  206.261258] lis3lv02d: 8 bits 3DC sensor found
    [  206.346722] input: ST LIS3LV02DL Accelerometer as /devices/faux/lis3lv02d/input/input17

    $ cat /sys/class/input/input17/name
    ST LIS3LV02DL Accelerometer

Signed-off-by: Dmytro Bagrii <dimich.dmb@gmail.com>
Reviewed-by: Hans de Goede <johannes.goede@oss.qualcomm.com>
Link: https://patch.msgid.link/20251128161523.6224-1-dimich.dmb@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2026-02-11 13:41:46 +01:00
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README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.