[PATCH] Input: synaptics - handle spurious release of trackstick buttons, again
From: Benjamin Tissoires <hidden>
Date: 2016-03-15 10:18:31
Also in:
lkml
Subsystem:
input (keyboard, mouse, joystick, touchscreen) drivers, the rest · Maintainers:
Dmitry Torokhov, Linus Torvalds
Looks like the fimware 8.2 stall has the extra buttons spurious release bug. Link: https://bugzilla.kernel.org/show_bug.cgi?id=114321 Cc: stable@vger.kernel.org Signed-off-by: Benjamin Tissoires <redacted> --- 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 6025eb4..9f3b83f 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c@@ -862,8 +862,9 @@ 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;
--
2.5.0