screebo: Add Xorg configuration file for Screebo

This change disables the "Fling Buffer Suppress Zero Length Scrolls"
flag for the screebo models by creating a new conf file specifically for
screebo. This conf file needs to be added to xorg-conf as it is
referenced by the new touchtest for screebo. This change is related to:
http://crrev.com/c/6692511/

BUG=b:378586077
TEST=unittests, manual testing, creating new touchpad test to verify
this behaviour as well.

Cq-Depend: 6692511
Change-Id: Idd3df1629e350b3ecd2711795b565e65f2e69a20
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/xorg-conf/+/6700281
Reviewed-by: Sean O'Brien <seobrien@chromium.org>
Commit-Queue: Sairah Amuthan <sairahamuthan@google.com>
Reviewed-by: Henry Barnor <hbarnor@chromium.org>
Tested-by: Sairah Amuthan <sairahamuthan@google.com>
Reviewed-by: Ray Xu <rayxu@google.com>
1 file changed
tree: 80eb7b91d652e02f05b2fe074962d4fcee5d9cba
  1. files/
  2. 20-mouse.conf
  3. 40-touchpad-cmt.conf
  4. 50-touchpad-cmt-atlas.conf
  5. 50-touchpad-cmt-banjo.conf
  6. 50-touchpad-cmt-brya.conf
  7. 50-touchpad-cmt-candy.conf
  8. 50-touchpad-cmt-caroline.conf
  9. 50-touchpad-cmt-cave.conf
  10. 50-touchpad-cmt-celes.conf
  11. 50-touchpad-cmt-clapper.conf
  12. 50-touchpad-cmt-cyan.conf
  13. 50-touchpad-cmt-daisy.conf
  14. 50-touchpad-cmt-dedede.conf
  15. 50-touchpad-cmt-elan.conf
  16. 50-touchpad-cmt-elm.conf
  17. 50-touchpad-cmt-enguarde.conf
  18. 50-touchpad-cmt-eve.conf
  19. 50-touchpad-cmt-expresso.conf
  20. 50-touchpad-cmt-falco.conf
  21. 50-touchpad-cmt-gandof.conf
  22. 50-touchpad-cmt-glimmer.conf
  23. 50-touchpad-cmt-gnawty.conf
  24. 50-touchpad-cmt-grunt.conf
  25. 50-touchpad-cmt-hatch.conf
  26. 50-touchpad-cmt-heli.conf
  27. 50-touchpad-cmt-jacuzzi.conf
  28. 50-touchpad-cmt-kevin.conf
  29. 50-touchpad-cmt-kip.conf
  30. 50-touchpad-cmt-leon.conf
  31. 50-touchpad-cmt-lulu.conf
  32. 50-touchpad-cmt-octopus.conf
  33. 50-touchpad-cmt-orco.conf
  34. 50-touchpad-cmt-pbody.conf
  35. 50-touchpad-cmt-peppy.conf
  36. 50-touchpad-cmt-pi.conf
  37. 50-touchpad-cmt-pit.conf
  38. 50-touchpad-cmt-puppy.conf
  39. 50-touchpad-cmt-quawks.conf
  40. 50-touchpad-cmt-rambi.conf
  41. 50-touchpad-cmt-reven.conf
  42. 50-touchpad-cmt-rex.conf
  43. 50-touchpad-cmt-samus.conf
  44. 50-touchpad-cmt-sarien.conf
  45. 50-touchpad-cmt-snappy.conf
  46. 50-touchpad-cmt-spring.conf
  47. 50-touchpad-cmt-squawks.conf
  48. 50-touchpad-cmt-swanky.conf
  49. 50-touchpad-cmt-trogdor.conf
  50. 50-touchpad-cmt-volteer.conf
  51. 50-touchpad-cmt-winky.conf
  52. 50-touchpad-cmt-wolf.conf
  53. 50-touchpad-cmt-zork.conf
  54. 60-touchpad-cmt-auron_paine.conf
  55. 60-touchpad-cmt-auron_yuna.conf
  56. 60-touchpad-cmt-daisy_skate.conf
  57. 60-touchpad-cmt-nyan_big.conf
  58. 60-touchpad-cmt-nyan_blaze.conf
  59. 60-touchpad-cmt-veyron_jaq.conf
  60. 60-touchpad-cmt-veyron_jerry.conf
  61. 60-touchpad-cmt-veyron_mighty.conf
  62. 60-touchpad-cmt-veyron_minnie.conf
  63. 60-touchpad-cmt-veyron_speedy.conf
  64. DIR_METADATA
  65. LICENSE
  66. OWNERS
  67. README.md
  68. unblocked_terms.txt
README.md

“Xorg” configuration files

This repository contains configuration files that were originally for the X Windowing System (a.k.a. X11 or Xorg). CrOS moved away from using X around 2015, but these files are still used to configure input devices. Thankfully this reduction in scope greatly reduces their effect on life satisfaction.

Syntax

The syntax is now a subset of Xorg's configuration syntax, and using anything outside of that subset will either cause an error or just be ignored. Specifically, only InputClass sections are supported. Within those, the following entries are supported:

  • Identifier;
  • some Match directives (MatchProduct, MatchDevicePath, MatchUSBID, MatchIsPointer, MatchIsTouchpad, and MatchIsTouchscreen);
  • Driver, which is ignored; and
  • Option, which is used to specify gesture properties instead of X11 input device options (though some old X11 options may be hanging around).

For more details, see the parsing code in Chromium's GesturePropertyProvider.