tree eac9034475e6ace4d4584fe0ce3b3054b21fff16
parent f8e05e5c9c32eb5a08fbf71c3d221ef37f96ef18
author Eddie James <eajames@linux.ibm.com> 1569873916 -0500
committer Eddie James <eajames@linux.ibm.com> 1569873916 -0500

Prevent excessive journal logging by wakeup signal

When the application is waiting for timings, it restarts the video to
try and get a signal. Part of this process sends a wake-up signal on
the virtual keyboard and pointer in case host VGA has slept. But if the
host is shut down, this causes repeated errors in the journal as the
HID gadgets return errors.

Fix this by consolidating the keyboard/pointer write functions and
therefore closing the HID gadget file handles when the host is shut
down, preventing further wake-up attempts until host returns.

Change-Id: Id5fe484c976eccefa6a72393d4d6b2b301d28a1a
Signed-off-by: Eddie James <eajames@linux.ibm.com>