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| author |   Hans de Goede <hdegoede@redhat.com> | 2014-05-05 09:36:43 -0700 |
|---|---|---|
| committer |   Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2014-05-05 12:34:22 -0700 |
| commit | 36189cc3cd57ab0f1cd75241f93fe01de928ac06 (patch) | |
| tree | 389db4a82d2909051e2d3a70ae28bc67395a0977 /drivers/input/mouse/elantech.h | |
| parent | Input: tca8418 - fix loading this driver as a module from a device tree (diff) | |
| download | linux-dev-36189cc3cd57ab0f1cd75241f93fe01de928ac06.tar.xz linux-dev-36189cc3cd57ab0f1cd75241f93fe01de928ac06.zip | |
Input: elantech - fix touchpad initialization on Gigabyte U2442
The hw_version 3 Elantech touchpad on the Gigabyte U2442 does not accept
0x0b as initialization value for r10, this stand-alone version of the
driver: http://planet76.com/drivers/elantech/psmouse-elantech-v6.tar.bz2
Uses 0x03 which does work, so this means not setting bit 3 of r10 which
sets: "Enable Real H/W Resolution In Absolute mode"
Which will result in half the x and y resolution we get with that bit set,
so simply not setting it everywhere is not a solution. We've been unable to
find a way to identify touchpads where setting the bit will fail, so this
patch uses a dmi based blacklist for this.
https://bugzilla.kernel.org/show_bug.cgi?id=61151
Cc: stable@vger.kernel.org
Reported-by: Philipp Wolfer <ph.wolfer@gmail.com>
Tested-by: Philipp Wolfer <ph.wolfer@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input/mouse/elantech.h')
| -rw-r--r-- | drivers/input/mouse/elantech.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/input/mouse/elantech.h b/drivers/input/mouse/elantech.h index 036a04abaef7..9e0e2a1f340d 100644 --- a/drivers/input/mouse/elantech.h +++ b/drivers/input/mouse/elantech.h @@ -130,6 +130,7 @@ struct elantech_data { bool jumpy_cursor; bool reports_pressure; bool crc_enabled; + bool set_hw_resolution; unsigned char hw_version; unsigned int fw_version; unsigned int single_finger_reports; |