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| author | Matteo Delfino <kendatsuba@gmail.com> | 2013-07-07 04:52:26 (GMT) |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2013-07-07 04:57:27 (GMT) |
| commit | 9eebed7de660c0b5ab129a9de4f89d20b60de68c (patch) | |
| tree | 74f280c98accf0f733116d5b794ea833d08c985a /Documentation/devicetree | |
| parent | a608026eacaee59cf0f1fa5caad60320f5b4a373 (diff) | |
| download | linux-fsl-qoriq-9eebed7de660c0b5ab129a9de4f89d20b60de68c.tar.xz | |
Input: elantech - fix for newer hardware versions (v7)
* Fix version recognition in elantech_set_properties
The new hardware reports itself as v7 but the packets'
structure is unaltered.
* Fix packet type recognition in elantech_packet_check_v4
The bitmask used for v6 is too wide, only the last three bits of
the third byte in a packet (packet[3] & 0x03) are actually used to
distinguish between packet types.
Starting from v7, additional information (to be interpreted) is
stored in the remaining bits (packets[3] & 0x1c).
In addition, the value stored in (packet[0] & 0x0c) is no longer
a constant but contains additional information yet to be deciphered.
This change should be backwards compatible with v6 hardware.
Additional-author: Giovanni Frigione <gio.frigione@gmail.com>
Signed-off-by: Matteo Delfino <kendatsuba@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'Documentation/devicetree')
0 files changed, 0 insertions, 0 deletions