[Bug 205690] [psm] [patch]: support for Elantech trackpads

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=205690

--- Comment #25 from Vladimir Kondratyev <wulf at cicgroup.ru> ---
(In reply to Juan Ramón Molina Menor from comment #24)
Thank you, Juan!

Could you add debug.psm.loglevel=2 to /boot/loader.conf and provide us with
some info about your touchpad hardware from "dmesg" and "sysctl hw.psm."
commands output?

Following is what my laptop prints:

# dmesg
... skipped ...
Elantech touchpad hardware v.4 firmware v.0x461f02
... skipped ...
  Model information:
   MaxX:     2772
   MaxY:     1452
   DpmmX:    32
   DpmmY:    32
   TracesX:  21
   TracesY:  11
   SemiMT:   0
   Clickpad: 1
   Trackpad: 0
   CRC:      0
   Pressure: 1
psm0: found Elantech Touchpad

# sysctl hw.psm.elantech.
hw.psm.elantech.softbutton3_x: 1848
hw.psm.elantech.softbutton2_x: 924
hw.psm.elantech.softbuttons_y: 363
hw.psm.elantech.touchpad_off: 0
hw.psm.elantech.vscroll_div_max: 50
hw.psm.elantech.vscroll_div_min: 30
hw.psm.elantech.vscroll_min_delta: 15
hw.psm.elantech.vscroll_ver_area: 0
hw.psm.elantech.vscroll_hor_area: 0
hw.psm.elantech.taphold_timeout: 250000
hw.psm.elantech.tap_min_queue: 2
hw.psm.elantech.tap_max_delta: 25
hw.psm.elantech.div_len: 30
hw.psm.elantech.div_max_na: 10
hw.psm.elantech.div_max: 6
hw.psm.elantech.div_min: 3
hw.psm.elantech.weight_len_squared: 200
hw.psm.elantech.weight_previous_na: 20
hw.psm.elantech.weight_previous: 6
hw.psm.elantech.weight_current: 3
hw.psm.elantech.multiplicator: 10000
hw.psm.elantech.window_max: 10
hw.psm.elantech.window_min: 4
hw.psm.elantech.na_left: 0
hw.psm.elantech.na_bottom: 0
hw.psm.elantech.na_right: 0
hw.psm.elantech.na_top: 0
hw.psm.elantech.margin_left: 0
hw.psm.elantech.margin_bottom: 0
hw.psm.elantech.margin_right: 0
hw.psm.elantech.margin_top: 0
hw.psm.elantech.max_width: 10
hw.psm.elantech.max_pressure: 220
hw.psm.elantech.min_pressure: 1
hw.psm.elantech.two_finger_scroll: 1
hw.psm.elantech.directional_scrolls: 0

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