On Sun, 6 Jan 2019 at 16:49, Valentin Vidic <Valentin.Vidic@carnet.hr> wrote:
On Sun, Jan 06, 2019 at 02:22:34PM +0530, Jay Aurabind wrote:
The subject line might be a bit dramatic, but I assure you my question is isn't.
I have a 3-axis accelerometer (LIS3LV02DL) in my laptop which shows up as an input device. Since its x86, I am assuming the necessary information was encoded in ACPI Tables. But I cannot find any mention of this device in the acpi tables exposed by the kernel.
I tried grepping through all the ACPI tables in /sys/firmware/acpi/tables. I was hoping to find some string that could identify the corresponding kernel drivers. But there are no hits for "lis". I suppose string based literals are not the way acpi works like in kernel device-driver matching. The driver in question is drivers/misc/lis3lv02d/lis3lv02d.c
So what exactly in the ACPI triggered the kernel module lis3lv02d to be loaded ?
It seems to me this is an I2C device so the following alias could load it:
modules.alias:alias i2c:lis3lv02d lis3lv02d_i2c
Apparently it could be both I2C or SPI, as I find lis3lv02d_spi.c as well. I don't really know if this device sits on I2C bus or SPI.
-- Valentin
_______________________________________________ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
-- Thanks and Regards, *Aurabindo J*