Re: Fwd: [PATCH] Remap MSI Laptop touchpad on/off key to F22 and F23

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Hello Joey,

Joey Lee [2011-03-16  1:06 -0600]:
> P: /devices/virtual/input/input7
> E: UDEV_LOG=3
> E: DEVPATH=/devices/virtual/input/input7
> E: PRODUCT=19/0/0/0
> E: NAME="MSI Laptop hotkeys"
> E: PHYS="msi-laptop/input0"
> E: EV==3
> E: KEY==180000 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
> E: MODALIAS=input:b0019v0000p0000e0000-e0,1,k213,214,ramlsfw
> E: SUBSYSTEM=input

Ah, thanks for this data. This indeed helped to demonstrate the
problem. First I added some debugging output to input_id [1].

While debugging I got an overflow, because your data is apparently
from a 32 bit machine/kernel, while I'm running 64 bit. I fixed that
as well while I was at it [2]. After fudging the data to be in the
proper 64 bit format, I was able to see what the KEY_MAX problem was.
Unfortunately the KEY_* and BTN_* blocks are alternating in
linux/input.h, so the fix looks a bit unelegant, but it works now [3].

Thanks!

Martin

[1] http://git.kernel.org/?p=linux/hotplug/udev.git;a=commitdiff;h=941c40bdc47d1fdee651558dd0e162cd8d674fab
[2] http://git.kernel.org/?p=linux/hotplug/udev.git;a=commitdiff;h=88149f668ea7ac23c61f6d1982db4f4517da763c
[3] http://git.kernel.org/?p=linux/hotplug/udev.git;a=commitdiff;h=792479aca54d266430c900f90557ea8d0da2c125
-- 
Martin Pitt                        | http://www.piware.de
Ubuntu Developer (www.ubuntu.com)  | Debian Developer  (www.debian.org)

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