tree fe1c473b2a9fa0ac5caaee9ab1d472686620b7bc
parent 4f232c9a0595bbf7fcc3b82cd4f7598573abf407
author Sean O'Brien <seobrien@chromium.org> 1599695432 -0700
committer Sean O'Brien <seobrien@chromium.org> 1600107353 +0000

Add usi-test tool

Add usi-test tool to inspect Universal Stylus Intiative (USI) device
communication via HID reports.

The tool currently supports:
* printing the report descriptor in human-readable formant
* printing incoming events in human-readable format
* setting and getting parameters for a paired stylus, and
* sending diagnostic commands a paired stylus.

BUG=b:165820387
TEST=build image including the tool, and test all commands

Change-Id: I7a92fd29cd677a5bed0bff51831a67f4f975df33
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/usi-test/+/2405391
Commit-Queue: Sean O'Brien <seobrien@chromium.org>
Tested-by: Sean O'Brien <seobrien@chromium.org>
Reviewed-by: Harry Cutts <hcutts@chromium.org>