From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Knut Wohlrab <Knut.Wohlrab@de.bosch.com>,
Oleksij Rempel <linux@rempel-privat.de>,
Dirk Behme <dirk.behme@de.bosch.com>,
Dmitry Torokhov <dmitry.torokhov@gmail.com>
Subject: [PATCH 3.14 10/23] Input: zforce_ts - fix dual touch recognition
Date: Mon, 9 May 2016 09:17:30 +0200 [thread overview]
Message-ID: <20160509071647.255913845@linuxfoundation.org> (raw)
In-Reply-To: <20160509071646.726412064@linuxfoundation.org>
3.14-stable review patch. If anyone has any objections, please let me know.
------------------
From: Knut Wohlrab <Knut.Wohlrab@de.bosch.com>
commit 6984ab1ab35f422292b7781c65284038bcc0f6a6 upstream.
A wrong decoding of the touch coordinate message causes a wrong touch
ID. Touch ID for dual touch must be 0 or 1.
According to the actual Neonode nine byte touch coordinate coding,
the state is transported in the lower nibble and the touch ID in
the higher nibble of payload byte five.
Signed-off-by: Knut Wohlrab <Knut.Wohlrab@de.bosch.com>
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/input/touchscreen/zforce_ts.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/input/touchscreen/zforce_ts.c
+++ b/drivers/input/touchscreen/zforce_ts.c
@@ -350,8 +350,8 @@ static int zforce_touch_event(struct zfo
point.coord_x = point.coord_y = 0;
}
- point.state = payload[9 * i + 5] & 0x03;
- point.id = (payload[9 * i + 5] & 0xfc) >> 2;
+ point.state = payload[9 * i + 5] & 0x0f;
+ point.id = (payload[9 * i + 5] & 0xf0) >> 4;
/* determine touch major, minor and orientation */
point.area_major = max(payload[9 * i + 6],
next prev parent reply other threads:[~2016-05-09 7:18 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-09 7:17 [PATCH 3.14 00/23] 3.14.69-stable review Greg Kroah-Hartman
2016-05-09 7:17 ` [PATCH 3.14 01/23] compiler-gcc: integrate the various compiler-gcc[345].h files Greg Kroah-Hartman
2016-05-11 9:27 ` Jiri Slaby
2016-05-14 23:41 ` Greg Kroah-Hartman
2016-05-09 7:17 ` [PATCH 3.14 02/23] compiler-gcc: disable -ftracer for __noclone functions Greg Kroah-Hartman
2016-05-09 7:17 ` [PATCH 3.14 04/23] ipvs: correct initial offset of Call-ID header search in SIP persistence engine Greg Kroah-Hartman
2016-05-09 7:17 ` [PATCH 3.14 05/23] nbd: ratelimit error msgs after socket close Greg Kroah-Hartman
2016-05-09 7:17 ` [PATCH 3.14 06/23] clk: versatile: sp810: support reentrance Greg Kroah-Hartman
2016-05-09 7:17 ` [PATCH 3.14 07/23] lpfc: fix misleading indentation Greg Kroah-Hartman
2016-05-09 7:17 ` [PATCH 3.14 08/23] tracing: Dont display trigger file for events that cant be enabled Greg Kroah-Hartman
2016-05-09 7:17 ` [PATCH 3.14 09/23] ARM: SoCFPGA: Fix secondary CPU startup in thumb2 kernel Greg Kroah-Hartman
2016-05-09 7:17 ` Greg Kroah-Hartman [this message]
2016-05-09 7:17 ` [PATCH 3.14 11/23] proc: prevent accessing /proc/<PID>/environ until its ready Greg Kroah-Hartman
2016-05-09 7:17 ` [PATCH 3.14 12/23] batman-adv: Check skb size before using encapsulated ETH+VLAN header Greg Kroah-Hartman
2016-05-09 7:17 ` [PATCH 3.14 14/23] batman-adv: Reduce refcnt of removed router when updating route Greg Kroah-Hartman
2016-05-09 7:17 ` [PATCH 3.14 15/23] MAINTAINERS: Remove asterisk from EFI directory names Greg Kroah-Hartman
2016-05-09 7:17 ` [PATCH 3.14 16/23] x86/tsc: Read all ratio bits from MSR_PLATFORM_INFO Greg Kroah-Hartman
2016-05-09 7:17 ` [PATCH 3.14 17/23] x86/sysfb_efi: Fix valid BAR address range check Greg Kroah-Hartman
2016-05-09 7:17 ` [PATCH 3.14 18/23] ACPICA: Dispatcher: Update thread ID for recursive method calls Greg Kroah-Hartman
2016-05-09 7:17 ` [PATCH 3.14 19/23] USB: serial: cp210x: add ID for Link ECU Greg Kroah-Hartman
2016-05-09 7:17 ` [PATCH 3.14 20/23] USB: serial: cp210x: add Straizona Focusers device ids Greg Kroah-Hartman
2016-05-09 7:17 ` [PATCH 3.14 21/23] iio: ak8975: Fix NULL pointer exception on early interrupt Greg Kroah-Hartman
2016-05-09 7:17 ` [PATCH 3.14 22/23] Input: ads7846 - correct the value got from SPI Greg Kroah-Hartman
2016-05-09 7:17 ` [PATCH 3.14 23/23] powerpc: scan_features() updates incorrect bits for REAL_LE Greg Kroah-Hartman
2016-05-09 13:20 ` [PATCH 3.14 00/23] 3.14.69-stable review Guenter Roeck
2016-05-09 19:40 ` Shuah Khan
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