mirror of
https://github.com/NixOS/mobile-nixos.git
synced 2024-09-11 12:05:26 +03:00
boot/init: Use the new evdev library
It still uses evdev internally, but first let's change the interface, *then* change the implementation details.
This commit is contained in:
parent
f2d1cf95b2
commit
0037614821
@ -40,6 +40,7 @@ stdenv.mkDerivation {
|
||||
|
||||
# This is the "script" that will be loaded.
|
||||
mrbc -o init.mrb \
|
||||
$(find ${../lib} -type f | sort) \
|
||||
$(find lib -type f | sort) \
|
||||
$(get_tasks) \
|
||||
init.rb
|
||||
|
@ -129,11 +129,7 @@ class Tasks::SwitchRoot < SingletonTask
|
||||
"KEY_ESC", # QEMU doesn't pass through CTRL and SHIFT as expected here...
|
||||
]
|
||||
|
||||
# Do *not* use System.run as it would fail the boot on return value != 0
|
||||
system(LOADER, "/applets/key-held.mrb", *keys)
|
||||
|
||||
# It returns `0` on key being held.
|
||||
$?.exitstatus == 0
|
||||
Evdev.keys_held(keys)
|
||||
end
|
||||
|
||||
# Checks if the user wants to select a generation.
|
||||
|
26
boot/lib/evdev.rb
Normal file
26
boot/lib/evdev.rb
Normal file
@ -0,0 +1,26 @@
|
||||
module Evdev
|
||||
# TODO: Remove dependency on `evtest` and rather rely on direct evdev bindings.
|
||||
def self.keys_held(keys)
|
||||
# See:
|
||||
# * https://github.com/torvalds/linux/blob/master/include/uapi/linux/input-event-codes.h
|
||||
|
||||
# `evdev` works on `/dev/input/event*` nodes.
|
||||
# Check them *all*. We can't know which is a keyboard.
|
||||
Dir.glob("/dev/input/event*").each do |ev|
|
||||
# `evtest` only tests one key at a time with `--query`...
|
||||
keys.each do |key|
|
||||
system("evtest", "--query", ev, "EV_KEY", key)
|
||||
# One of the keys desired is held
|
||||
if $?.exitstatus == 10
|
||||
puts "#{key} is being held"
|
||||
return true
|
||||
end
|
||||
|
||||
# Failed for other reason
|
||||
puts "Failed to run evtest, #{$?.exitstatus}" unless $?.exitstatus == 0
|
||||
end
|
||||
end
|
||||
|
||||
return false
|
||||
end
|
||||
end
|
Loading…
Reference in New Issue
Block a user