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CHROMIUM: Input: synaptics - process finger (<=5) transitions
Synaptics image sensor touchpads track up to 5 fingers, but only report 2. They use a special "TYPE=2" (AGM-CONTACT) packet type that reports the number of tracked fingers and which finger is reported in the SGM and AGM packets. With this new packet type, it is possible to tell userspace when 4 or 5 fingers are touching. Signed-off-by: Daniel Kurtz <email@example.com> Acked-by: Chase Douglas <firstname.lastname@example.org> Change-Id: I58f39a14e808ba865e5c39dfdf72e7b6da112395 BUG=chromium-os:19094 TEST=builds clean; evtest to confirm raw events confirm motion, 2f-tap, 2f-scroll, using xf86-input-cmt Reviewed-on: http://gerrit.chromium.org/gerrit/4259 Reviewed-by: Andrew de los Reyes <email@example.com> Reviewed-by: Daniel Kurtz <firstname.lastname@example.org> Tested-by: Daniel Kurtz <email@example.com>
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