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[SOLVED] uinput and evdev
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lagalopex
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Joined: 16 Oct 2004
Posts: 452

PostPosted: Mon Oct 05, 2009 12:31 pm    Post subject: [SOLVED] uinput and evdev Reply with quote

Hello!

I already have my mouse running with the evdev-driver. Now I wanted to use evdev for the keyboard as well.

I have some event-files in /dev/input/ having named symlinks (by udev: normal, special and extra)
My "normal" keyboard is working.
Then I have an additional event file for "special" keys that does not report any keypress (checked with xev) anymore.
And I have a uinput-driver that is creating an additinal event file ("extra") but xorg cant use it:
Code:
(**) Option "SendCoreEvents"
(**) Keyboard3: always reports core events
(**) Keyboard3: Device: "/dev/input/extra"
(EE) Unable to open evdev device "/dev/input/extra".
(II) UnloadModule: "evdev"
(EE) PreInit returned NULL for "Keyboard3"


In the config file I have for all three keyboards:
Code:
Section "InputDevice"
    Identifier      "Keyboard1"
    Driver          "evdev"
    Option          "AutoRepeat"    "500 30"
    Option          "XkbModel"      "evdev"
    Option          "XkbLayout"     "de"
    Option          "Device" "/dev/input/normal"
EndSection

...

Section "ServerLayout"
    Identifier          "Simple Layout"
    Screen              "Screen 2"
    InputDevice         "Mouse" "CorePointer"
    InputDevice         "Keyboard1" "CoreKeyboard"
    InputDevice         "Keyboard2" "SendCoreEvents"
    InputDevice         "Keyboard3" "SendCoreEvents"
EndSection


The main problem is the uinput events not working.
Its a stable amd64 system.
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System: AMD Phenom II X4 840, 16GB RAM, NVidia GeForce GT 520, ASUS M4A87TD/USB3, Raid, Seagate Constellation ES
AMD64 system slow/unresponsive during disk access...


Last edited by lagalopex on Mon Oct 05, 2009 2:19 pm; edited 1 time in total
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Mike Hunt
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Joined: 19 Jul 2009
Posts: 5287

PostPosted: Mon Oct 05, 2009 12:43 pm    Post subject: Reply with quote

try adding this to xorg.conf
Code:
Section "ServerFlags"
        Option "AllowEmptyInput"   "false"
EndSection
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lagalopex
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Joined: 16 Oct 2004
Posts: 452

PostPosted: Mon Oct 05, 2009 2:19 pm    Post subject: Reply with quote

Thanks. Now is gets loaded. And the reason why xev did not see an event was the fact that the key was bound to global action due to changes in the keycodes.

So everything is fine now!
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System: AMD Phenom II X4 840, 16GB RAM, NVidia GeForce GT 520, ASUS M4A87TD/USB3, Raid, Seagate Constellation ES
AMD64 system slow/unresponsive during disk access...
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