Vincent Palatin 77f011206c Add WebUSB descriptor support
The WebUSB specification defines a specific Platform Descriptor in the
Binary Object Store:
https://wicg.github.io/webusb/#webusb-platform-capability-descriptor
This descriptor provides a special 'Landing page' URL to the host
browser and associated privileges for it.

Bump the USB version for BOS descriptors to 2.1 to be compatible with
Chrome implementation.

Signed-off-by: Vincent Palatin <vpalatin@chromium.org>

BUG=none
BRANCH=twinkie
TEST=manual: on Twinkie (chip/stm32) and HG proto2 (chip/g), enumerate
WebUSB descriptors with lsusb and connect to a WebUSB page in Chrome
R61+.

Change-Id: I7211ab554f4a6c156c1e8e79a3d9f0d6644217c6
Reviewed-on: https://chromium-review.googlesource.com/664813
Commit-Ready: Vincent Palatin <vpalatin@chromium.org>
Tested-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
2017-09-22 10:18:50 -07:00
2017-08-07 19:29:13 -07:00
2017-09-22 10:18:50 -07:00
2017-09-22 10:18:50 -07:00
2017-09-07 15:01:05 -07:00
2017-07-08 20:38:53 -07:00
2017-09-22 10:18:50 -07:00
2012-05-11 09:11:52 -07:00
2014-04-02 19:58:53 +00:00
2015-12-08 20:05:05 -08:00

For an overview of the Embedded Controller firmware, refer to

http://www.chromium.org/chromium-os/2014-firmware-summit

For instructions on building from source, refer to

http://www.chromium.org/chromium-os/ec-development/getting-started-building-ec-images-quickly
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