hello,

i've got an usb rf remote control from shuttle:
http://www.shuttle.com/new/product/barebone/specs_a.asp?A_id=17
in the package is a remote and receiver module. among some windoof hotkeys
it has the 0-9 keys, escape, enter and backspace and a hat-like mouse control.

windows xp:
under windows xp there are no additional drivers needed. 
after pluging the device into the usb port the first time an usb composite
device is reported and after some time 2 hid devices are found: keyboard and
mouse.

linux:
a hid.keyboard and a hid.pointer is found. btw: what is the difference
between pointer and mouse??
the keys are working fine: i can xmodmap most of them to meaningful values.
only the mouse(pointer) does not really work. 
(yes: XF86Config is configured correctly. other usb mice work fine via
/dev/input/mice)
it's interesting: when i press the mouse control on the south-west side the
mousepointer moves
correctly towards the right bottom corner of the screen. but as soon as i
want to go to the left or the top
the pointer "jumps" to the lower right corner instantly!

next i've defined DEBUG 1  in  drivers/usb/hid.h  and recompiled the hid.o
module.
now i was watching the debug output on the console: 
for right and bottom directions i always get values around 2-4 for
GenericDesktop.X and GenericDesktop.Y but for left and top movements i get the value
255 !!! for GenericDesktop.X and GenericDesktop.Y.

with a working usb mouse i get negative X,Y values for top and left
directions.

another interesting point: 
for the working usb mouse a Logical Minimum (-127) and Logical Maximum(127
is reported but the pointer of my rf control is listed with Logical Minimum
(0) and Logical Maxmum (1).

i'm using kernel 2.4.21. 

any hints ???

cheers,
peter





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