tree 51884a4346333089b7db1578a82cc145f765b5e5
parent cd0e8f6e0351495173f5ff2397d1f5e4ca5f3484
author Jocelyn Dang <jocelyndang@google.com> 1547682768 -0800
committer CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org> 1547755272 +0000

[usb-bus] Re-add device for Device Firmware Upgrade

Once we finish loading firmware onto the device, we issue a reset.
If the device descriptors have changed (DFU succeeded), we need to
remove the existing device and re-add it so the correct driver
will be loaded.

Since this bus_reinitialize_device function is called from the device manager
thread, there should be no race condition of calls from the device
manager trying to do bus_add_device or bus_remove_device.

TEST= plug in DFU device and run usb-fwloader -d -f firmware_image
Verified device appeared in lsusb

ZX-3155 #comment

Change-Id: Ieafe26e89e2e7c57cff9da22107b54b532653f24