quoted

It's not even ADC counts - the mpu3050 has its own processing.

Oh goody..

Just had a look at the datasheet. 'Interesting'

I'm particularly looking forward to seeing use of the on gyro master
i2c bus for talking to an external accelerometer :)

A lot depends on the firmware in use. I don't have a test case for adding
using the i2c bus as a sort of bypass for the mpu3050 alas, although it
did occur to me.

There are quoted conversion parameters for going from the raw readings
to degree's per sec.  You 'could' apply them in kernel I guess, or maybe
provide details of what they are to userspace....

Not sure how that is best done really - I guess I should at least
document the "probable" conversions - again it seems it will be firmware
specific in some cases.