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Input: synaptics - handle spurious release of trackstick buttons, again

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Looks like the fimware 8.2 still 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 <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Benjamin Tissoires 2016-03-17 17:12:54 -07:00 committed by Dmitry Torokhov
parent a1376d3de4
commit 82be788c96
1 changed files with 3 additions and 2 deletions
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5
drivers/input/mouse/synaptics.c
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@ -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;