Thread: Loading accelerometer driver in 5.1.0
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Old 06-28-2012, 11:56 AM   #3
knc1
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Quote:
Originally Posted by mmatej View Post
Hi all!
I wanted to experiment with the accelerometer built into the Kindle Touch, but the FW version 5.1.0 doesn't load necessary driver automatically when booted in main (unlike the previous versions), so there's not /dev/input/event* for the accelerometer device. I tried to load the driver manually from the diags partition:
Code:
mount /dev/mmcblk0p2 /mnt/mmc/
insmod /mnt/mmc/lib/modules/2.6.31-rt11-lab126/kernel/drivers/hwmon/hwmon.ko
insmod /mnt/mmc/lib/modules/2.6.31-rt11-lab126/kernel/arch/arm/mach-mx5/mx50_yoshi_mma8453.ko
lsmod now shows the module:
Code:
Module                  Size  Used by
mx50_yoshi_mma8453      8836  0
hwmon                   2160  1 mx50_yoshi_mma8453
but there is still not event file in /dev/input. Have I missed something? Thanks for help!
They probably change (like in: removed) the udev rule that would have handled that device node creation.
Look in /etc/udev and /etc/udev.d of a copy of both versions of the image. The missing or commented out rule(s) should be easy to find.
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