Date: Thu, 4 May 2017 22:51:22 +0000 (UTC) From: Vladimir Kondratyev <wulf@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r317812 - head/sys/dev/atkbdc Message-ID: <201705042251.v44MpMsH006374@repo.freebsd.org>
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Author: wulf Date: Thu May 4 22:51:22 2017 New Revision: 317812 URL: https://svnweb.freebsd.org/changeset/base/317812 Log: Reduce default tap_min_queue size for Elan touchpads Elan hw v.4 touchpads often sends touchpad release packet right after touchpad touch one. Most probably this happens due to PS/2 limited bandwith. Reducing of tap_min_queue size to 1 makes multifinger tap detection more reliable in this case. Reviewed by: gonzo Approved by: gonzo (mentor) MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D10266 Modified: head/sys/dev/atkbdc/psm.c Modified: head/sys/dev/atkbdc/psm.c ============================================================================== --- head/sys/dev/atkbdc/psm.c Thu May 4 22:47:18 2017 (r317811) +++ head/sys/dev/atkbdc/psm.c Thu May 4 22:51:22 2017 (r317812) @@ -6218,6 +6218,9 @@ elantech_init_synaptics(struct psm_softc /* Disable finger detection pressure threshold */ sc->syninfo.min_pressure = 1; + /* Elans often report double & triple taps as single event */ + sc->syninfo.tap_min_queue = 1; + /* Use full area of touchpad */ sc->syninfo.margin_top = 0; sc->syninfo.margin_right = 0;
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