Do not unnecessarily clear halt condition on bulk output endpoint.
It has been observed that some dongles (e.g. Huawei EC156/EC1561) may
fail to switch to the modem mode if mist clears the halt condition on
the bulk output endpoint after the USB message is successfully sent.
This CL modifies mist not to unnecessarily clear the halt condition on
the bulk output endpoint.
BUG=chromium:313588
TEST=Tested the following:
1. Build and run unit tests.
2. Verify on daisy_spring and peppy that mist reliably switches the
Huawei EC156/EC1561 (and other supported dongles) from the mass
storage mode to the modem mode.
Change-Id: I1a190308fa41e4457694672a0212a133aaf5eadd
Reviewed-on: https://chromium-review.googlesource.com/178213
Tested-by: Ben Chan <benchan@chromium.org>
Reviewed-by: mukesh agrawal <quiche@chromium.org>
Commit-Queue: Ben Chan <benchan@chromium.org>
1 file changed
