[Bada Software and Hacking General] adfree:
# getevent
getevent
[B]add device 1: /dev/input/event2
name: "ariesve_keypad"
add device 2: /dev/input/event8
name: "melfas_touchkey"
add device 3: /dev/input/event7
name: "7k_handset"
add device 4: /dev/input/event6
name: "light"
add device 5: /dev/input/event5
name: "proximity"
add device 6: /dev/input/event4
name: "orientation"
add device 7: /dev/input/event3
name: "quantom-touchscreen"
add device 8: /dev/input/event1
name: "dock"
add device 9: /dev/input/event0
name: "sec_jack"[/B]
/dev/input/event2: 0004 0004 00000001
/dev/input/event2: 0000 0000 00000000
/dev/input/event2: 0004 0004 00000009
/dev/input/event2: 0001 0072 00000001
/dev/input/event2: 0000 0000 00000000
/dev/input/event2: 0004 0004 00000011
/dev/input/event2: 0000 0000 00000000
/dev/input/event2: 0004 0004 00000019
/dev/input/event2: 0000 0000 00000000
/dev/input/event2: 0004 0004 00000021
/dev/input/event2: 0000 0000 00000000
/dev/input/event2: 0004 0004 00000001
/dev/input/event2: 0000 0000 00000000
/dev/input/event2: 0004 0004 00000009
/dev/input/event2: 0001 0072 00000000
/dev/input/event2: 0000 0000 00000000
/dev/input/event2: 0004 0004 00000011
/dev/input/event2: 0000 0000 00000000
/dev/input/event2: 0004 0004 00000019
/dev/input/event2: 0000 0000 00000000
/dev/input/event2: 0004 0004 00000021
/dev/input/event2: 0000 0000 00000000
/dev/input/event7: 0001 006b 00000001
/dev/input/event7: 0000 0000 00000000
/dev/input/event7: 0001 006b 00000000
/dev/input/event7: 0000 0000 00000000
/dev/input/event6: 0003 0006 000000c8

First result of using this info...

http://xdaforums.com/showthread.php?t=1875094

With my S8600 with I9001 Firmware...

I have pressed Volume - ... then Power...

Will check again what which key spit out...

Best Regards

Edit 1.

Volume - shows this:

/dev/input/event2: 0004 0004 00000001
/dev/input/event2: 0000 0000 00000000
/dev/input/event2: 0004 0004 00000009
/dev/input/event2: 0001 0072 00000001
/dev/input/event2: 0000 0000 00000000
/dev/input/event2: 0004 0004 00000011
/dev/input/event2: 0000 0000 00000000
/dev/input/event2: 0004 0004 00000019
/dev/input/event2: 0000 0000 00000000
/dev/input/event2: 0004 0004 00000021
/dev/input/event2: 0000 0000 00000000
/dev/input/event2: 0004 0004 00000001
/dev/input/event2: 0000 0000 00000000
/dev/input/event2: 0004 0004 00000009
/dev/input/event2: 0001 0072 00000000
/dev/input/event2: 0000 0000 00000000
/dev/input/event2: 0004 0004 00000011
/dev/input/event2: 0000 0000 00000000
/dev/input/event2: 0004 0004 00000019
/dev/input/event2: 0000 0000 00000000
/dev/input/event2: 0004 0004 00000021
/dev/input/event2: 0000 0000 00000000

Edit 2.

# getevent -d -l
getevent -d -l
getevent: invalid option -d
Usage: getevent [-t] [-n] [-s switchmask] [-S] [-v [mask]] [-p] [-q] [-c count] [-r] [device]
-t: show time stamps
-n: don't print newlines
-s: print switch states for given bits
-S: print all switch states
-v: verbosity mask (errs=1, dev=2, name=4, info=8, vers=16, pos. events=32)
-p: show possible events (errs, dev, name, pos. events)
-q: quiet (clear verbosity mask)
-c: print given number of events then exit
-r: print rate events are received

# sendevent ?
sendevent ?
use: sendevent device type code value

Edit 3...

Btw...

Volume up shows this as event:

/dev/input/event2: 0004 0004 00000000
/dev/input/event2: 0000 0000 00000000
/dev/input/event2: 0004 0004 00000008
/dev/input/event2: 0000 0000 00000000
/dev/input/event2: 0004 0004 00000010
/dev/input/event2: 0000 0000 00000000
/dev/input/event2: 0004 0004 00000018
/dev/input/event2: 0000 0000 00000000
/dev/input/event2: 0004 0004 00000020
/dev/input/event2: 0000 0000 00000000
/dev/input/event2: 0004 0004 00000000
/dev/input/event2: 0000 0000 00000000
/dev/input/event2: 0004 0004 00000008
/dev/input/event2: 0000 0000 00000000
/dev/input/event2: 0004 0004 00000010
/dev/input/event2: 0000 0000 00000000
/dev/input/event2: 0004 0004 00000018
/dev/input/event2: 0000 0000 00000000
/dev/input/event2: 0004 0004 00000020
/dev/input/event2: 0000 0000 00000000

Middle/Home Key do nothing...

Hmmmmmmmm...

Volume UP looks like 0x00 as HEX or 0 as Dec...

If 72 HEX is 114 Dec Value...

We remember this...

http://xdaforums.com/showpost.php?p=54553392&postcount=603

Volume +	115
Volume -	[B]114[/B]
Home	102
Power	107

Will test 0 in system/usr/keylayout/...

Later more...