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Input: elantech - fix V4 report decoding for module with middle key 

Some touchpad has middle key and it will be indicated in bit 2 of packet[0].
We need to fix V4 formation's byte mask to prevent error decoding.

Signed-off-by: KT Liao <kt.liao@emc.com.tw>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
??? 2018-06-21 17:15:32 -07:00 committed by Dmitry Torokhov
parent 24bb555e6e
commit e0ae2519ca
1 changed files with 1 additions and 1 deletions
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2
drivers/input/mouse/elantech.c
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@ -799,7 +799,7 @@ static int elantech_packet_check_v4(struct psmouse *psmouse)
else if (ic_version == 7 && etd->info.samples[1] == 0x2A) else if (ic_version == 7 && etd->info.samples[1] == 0x2A)
sanity_check = ((packet[3] & 0x1c) == 0x10); sanity_check = ((packet[3] & 0x1c) == 0x10);
else else
sanity_check = ((packet[0] & 0x0c) == 0x04 && sanity_check = ((packet[0] & 0x08) == 0x00 &&
(packet[3] & 0x1c) == 0x10); (packet[3] & 0x1c) == 0x10);
if (!sanity_check) if (!sanity_check)