I'm having problems getting some of the extra buttons on an IBM
USB keyboard to work. The buttons generate keycodes (from showkey
-k), but produce no result from showkey -s. And currently do not
generate an events in X under xev. (However I am unsure whether I
should have to add an extra InputDevice in xorg.conf to correspond
to the two separate entries in /proc/bus/input/devices)
There are eight such keys ("Access IBM" button, and 7 application
launcher buttons).
The keys generate keycodes of the form
0x00 0x82 0x80
on keypress
0x80 0x82 0x80
on key release
with the last byte change with key:
0x80 Access IBM
0x81 Lock Desktop
0x82 My Documents
0x83 Word Processor
0x84 Spreadsheet
0x85 Calculator
0x86 E-mail
0x87 Internet
I'm running kernel 2.6.12-9-386 (kernel image from ubuntu
linux-image-2.6.12-9-386 )
The appropriate entry in /proc/bus/usb/devices is:
T: Bus=05 Lev=03 Prnt=04 Port=00 Cnt=01 Dev#= 5 Spd=12 MxCh= 0
D: Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
P: Vendor=04b3 ProdID=301b Rev= 1.00
S: Manufacturer=Lite-On Technology
S: Product=USB Productivity Option Keyboard( has the hub in # 1 )
C:* #Ifs= 2 Cfg#= 1 Atr=a0 MxPwr= 44mA
I: If#= 0 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=01 Prot=01 Driver=usbhid
E: Ad=81(I) Atr=03(Int.) MxPS= 8 Ivl=10ms
I: If#= 1 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=00 Prot=00 Driver=usbhid
E: Ad=82(I) Atr=03(Int.) MxPS= 4 Ivl=255ms
And from /proc/bus/input/devices:
I: Bus=0003 Vendor=04b3 Product=301b Version=0100
N: Name="Lite-On Technology USB Productivity Option Keyboard( has the
hu"
P: Phys=usb-0000:00:1d.7-4.2.1/input0
H: Handlers=kbd event6
B: EV=120003
B: KEY=10000 7 ff87207a c14057ff febeffdf ffefffff ffffffff fffffffe
B: LED=1f
I: Bus=0003 Vendor=04b3 Product=301b Version=0100
N: Name="Lite-On Technology USB Productivity Option Keyboard( has the
hu"
P: Phys=usb-0000:00:1d.7-4.2.1/input1
H: Handlers=kbd event7
B: EV=3
B: KEY=ff 0 0 3878 d8000101 e0000 0 0 0
The keyboard is variously named as:
IBM Enhanced Performance USB Keyboard
IBM Productivity Keyboard
Model No. 89P8800
Many thanks,
Jonathan Keeling
--
[EMAIL PROTECTED] http://www.mit.edu/~keeling
Phone: +1 617 253 3896
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