Typical example.
If touchpad stops responding to clickc, I immediately run terminal as root,
run command as below, and start double clicking.
Click not works, so touchpad shows only Double Tap.
After 13 seconds clicks work again, and both BTN_LEFT and DOUBLETAP are
received:
# evemu-record /dev/input/event4 | grep BTN --line-buffered | grep -v
'BTN_TOUCH|BTN_TOOL_FINGER|myszbuttontest|mysz|mouse|button|btn' -E
# Event code 272 (BTN_LEFT)
# Event code 328 (BTN_TOOL_QUINTTAP)
# Event code 333 (BTN_TOOL_DOUBLETAP)
# Event code 334 (BTN_TOOL_TRIPLETAP)
# Event code 335 (BTN_TOOL_QUADTAP)
E: 2.674956 0001 014d 0001 # EV_KEY / BTN_TOOL_DOUBLETAP 1
E: 2.936232 0001 014d 0000 # EV_KEY / BTN_TOOL_DOUBLETAP 0
E: 5.505925 0001 014d 0001 # EV_KEY / BTN_TOOL_DOUBLETAP 1
E: 5.717364 0001 014d 0000 # EV_KEY / BTN_TOOL_DOUBLETAP 0
E: 5.979325 0001 014d 0001 # EV_KEY / BTN_TOOL_DOUBLETAP 1
E: 6.398260 0001 014d 0000 # EV_KEY / BTN_TOOL_DOUBLETAP 0
E: 6.873062 0001 014d 0001 # EV_KEY / BTN_TOOL_DOUBLETAP 1
E: 7.134173 0001 014d 0000 # EV_KEY / BTN_TOOL_DOUBLETAP 0
E: 7.546990 0001 014d 0001 # EV_KEY / BTN_TOOL_DOUBLETAP 1
E: 7.815190 0001 014d 0000 # EV_KEY / BTN_TOOL_DOUBLETAP 0
E: 8.234735 0001 014d 0001 # EV_KEY / BTN_TOOL_DOUBLETAP 1
E: 8.510431 0001 014d 0000 # EV_KEY / BTN_TOOL_DOUBLETAP 0
E: 8.952215 0001 014d 0001 # EV_KEY / BTN_TOOL_DOUBLETAP 1
E: 9.238902 0001 014d 0000 # EV_KEY / BTN_TOOL_DOUBLETAP 0
E: 9.919741 0001 014d 0001 # EV_KEY / BTN_TOOL_DOUBLETAP 1
E: 10.277348 0001 014d 0000 # EV_KEY / BTN_TOOL_DOUBLETAP 0
E: 10.955808 0001 014d 0001 # EV_KEY / BTN_TOOL_DOUBLETAP 1
E: 11.265050 0001 014d 0000 # EV_KEY / BTN_TOOL_DOUBLETAP 0
E: 11.838857 0001 014d 0001 # EV_KEY / BTN_TOOL_DOUBLETAP 1
E: 12.306375 0001 014d 0000 # EV_KEY / BTN_TOOL_DOUBLETAP 0
E: 12.966894 0001 014d 0001 # EV_KEY / BTN_TOOL_DOUBLETAP 1
E: 13.028472 0001 0110 0001 # EV_KEY / BTN_LEFT 1
E: 13.200764 0001 0110 0000 # EV_KEY / BTN_LEFT 0
E: 13.241988 0001 014d 0000 # EV_KEY / BTN_TOOL_DOUBLETAP 0
E: 16.134136 0001 0110 0001 # EV_KEY / BTN_LEFT 1
E: 16.244381 0001 0110 0000 # EV_KEY / BTN_LEFT 0
E: 18.273289 0001 014d 0001 # EV_KEY / BTN_TOOL_DOUBLETAP 1
E: 19.091227 0001 014d 0000 # EV_KEY / BTN_TOOL_DOUBLETAP 0
