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| author | ??? <kt.liao@emc.com.tw> | 2018-06-21 17:15:32 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2018-06-21 17:20:11 -0700 |
| commit | e0ae2519ca004a628fa55aeef969c37edce522d3 (patch) | |
| tree | fb652054b8b05e42b992e3cee5c31f27dccebc99 | |
| parent | 24bb555e6e46d96e2a954aa0295029a81cc9bbaa (diff) | |
| download | linux-stable-e0ae2519ca004a628fa55aeef969c37edce522d3.tar.gz linux-stable-e0ae2519ca004a628fa55aeef969c37edce522d3.tar.bz2 linux-stable-e0ae2519ca004a628fa55aeef969c37edce522d3.zip | |
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>
| -rw-r--r-- | drivers/input/mouse/elantech.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c index 4c52e43c9273..dd85b16dc6f8 100644 --- a/drivers/input/mouse/elantech.c +++ b/drivers/input/mouse/elantech.c @@ -799,7 +799,7 @@ static int elantech_packet_check_v4(struct psmouse *psmouse) else if (ic_version == 7 && etd->info.samples[1] == 0x2A) sanity_check = ((packet[3] & 0x1c) == 0x10); else - sanity_check = ((packet[0] & 0x0c) == 0x04 && + sanity_check = ((packet[0] & 0x08) == 0x00 && (packet[3] & 0x1c) == 0x10); if (!sanity_check) |