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| author | Hans de Goede <hdegoede@redhat.com> | 2014-09-08 14:39:52 -0700 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2014-11-05 20:27:41 +0000 |
| commit | 0dbe2cea0fb186417d42561df9f687c02b0fabfe (patch) | |
| tree | 770b1b564eb29b25625635765ee2879e2ede3dc6 /drivers/input | |
| parent | 3d13e2b6962460a2979f6f12a6fba3310c5ce479 (diff) | |
| download | lwn-0dbe2cea0fb186417d42561df9f687c02b0fabfe.tar.gz lwn-0dbe2cea0fb186417d42561df9f687c02b0fabfe.zip | |
Input: elantech - fix detection of touchpad on ASUS s301l
commit 271329b3c798b2102120f5df829071c211ef00ed upstream.
Adjust Elantech signature validation to account fo rnewer models of
touchpads.
Reported-and-tested-by: Màrius Monton <marius.monton@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'drivers/input')
| -rw-r--r-- | drivers/input/mouse/elantech.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c index 70423dc57d1b..2d5bb5bab91d 100644 --- a/drivers/input/mouse/elantech.c +++ b/drivers/input/mouse/elantech.c @@ -1130,6 +1130,13 @@ static bool elantech_is_signature_valid(const unsigned char *param) if (param[1] == 0) return true; + /* + * Some models have a revision higher then 20. Meaning param[2] may + * be 10 or 20, skip the rates check for these. + */ + if (param[0] == 0x46 && (param[1] & 0xef) == 0x0f && param[2] < 40) + return true; + for (i = 0; i < ARRAY_SIZE(rates); i++) if (param[2] == rates[i]) return false; |