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We get the insertion event before the jack is fully inserted at which point the second ring on a TRRS connector may short the 2nd ring and sleeve contacts. Testing has shown that this short-circuit may happen as late as 500ms after the insertion event, but it never lasts longer then 300ms. This commit changes the detection algorithm to require 5 identical OVCD values in a row at 100 ms intervals to fix the jack-type sometimes getting mis-detected. Tested-by: Carlo Caione <carlo@endlessm.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.