I'd like an answer to this as well. On Saturday, 5 April 2014 22:12:43 UTC+1, stu...@gmail.com wrote: > > I am trying to figure out how the accelerometer or gyroscope readings make it > out of the kernel to the rest of the Android system. I am using and compiling > the kitkat kernel (msm-flo-3.4-jb-mr2) for the Nexus 7 2013 wifi version. I > have used printk() in the drivers/input/misc/mpu3050.c and > drivers/input/misc/lis3dh_acc.c files to see if the read routines are being > called when I move the tablet around or when I use an app to read the sensors > but I don't see any reads at the kernel level. The file proc/kmsg shows only > the lis3dh_acc driver is loaded but I never see any of the code other than > the init being called. > > Anyone have any insight as to how the accelerometer and gyro are read? I > could not find any other kernel code being built that had to do with those > sensors. > > Thanks. > >
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