From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Kamal Mostafa To: linux-kernel@vger.kernel.org, stable@vger.kernel.org, kernel-team@lists.ubuntu.com Cc: Benjamin Tissoires , Dmitry Torokhov , Kamal Mostafa Subject: [PATCH 3.13.y-ckt 56/97] Input: synaptics - handle spurious release of trackstick buttons, again Date: Mon, 4 Apr 2016 16:26:20 -0700 Message-Id: <1459812421-933-57-git-send-email-kamal@canonical.com> In-Reply-To: <1459812421-933-1-git-send-email-kamal@canonical.com> References: <1459812421-933-1-git-send-email-kamal@canonical.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: 3.13.11-ckt38 -stable review patch. If anyone has any objections, please let me know. ---8<------------------------------------------------------------ From: Benjamin Tissoires commit 82be788c96ed5978d3cb4a00079e26b981a3df3f upstream. Looks like the fimware 8.2 still has the extra buttons spurious release bug. Link: https://bugzilla.kernel.org/show_bug.cgi?id=114321 Signed-off-by: Benjamin Tissoires Signed-off-by: Dmitry Torokhov Signed-off-by: Kamal Mostafa --- drivers/input/mouse/synaptics.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c index 17b0285..189a7fd3 100644 --- a/drivers/input/mouse/synaptics.c +++ b/drivers/input/mouse/synaptics.c @@ -837,8 +837,9 @@ static void synaptics_report_ext_buttons(struct psmouse *psmouse, if (!SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap)) return; - /* Bug in FW 8.1, buttons are reported only when ExtBit is 1 */ - if (SYN_ID_FULL(priv->identity) == 0x801 && + /* Bug in FW 8.1 & 8.2, buttons are reported only when ExtBit is 1 */ + if ((SYN_ID_FULL(priv->identity) == 0x801 || + SYN_ID_FULL(priv->identity) == 0x802) && !((psmouse->packet[0] ^ psmouse->packet[3]) & 0x02)) return; -- 2.7.4