UserAgent: Mozilla/5.0 (X11; CrOS x86_64 7834.70.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.112 Safari/537.36
Platform: 7834.70.0 (Official Build) stable-channel panther

Steps to reproduce the problem:
1. Plug in USB touch screen overlay
2. Swipe down to scroll page down - page swipes right
3. Swipe right - page scrolls down

What is the expected behavior?
With the touchscreen overlay plugged in and recognized as a HID device, when I swipe down with my fingers on the touchscreen, the page should scroll down.

What went wrong?
Tested this on two different devices, a HP Chromebox and an Asus device, both on the same version/branch of OS.  Same results on both devices.

XY axis on touchscreen is swapped.

Did this work before? No 

Chrome version: 49.0.2623.112  Channel: stable
OS Version: 7834.70.0
Flash Version: Shockwave Flash 21.0.0.216-r1

lsusb listing for touchscreen:

Device 008: ID 0596:0001 MicroTouch Systems, Inc. Touchscreen

Fixed issue by putting device in Dev mode, making partition writable and creating /etc/modprob.d/local.conf
Added “usbtouchscreen swap_xy=1” to local.conf
Reboot & test
Success