USB mouse, wheel doesn't work

[Kris Maglione]

On Sat, Oct 22, 2005 at 10:36:00PM -0700, Loren M. Lang wrote:
>Can you post the HID report descriptor for that device?  All the
>information about the wheel should be described in there.  I have a
>crude program to do that if you need.

This is the debug info that attach spits out. It's based on the HID 
descriptor:
ums_attach: sc=0xc1ca8400
ums_attach: X   8/8
ums_attach: Y   16/8
ums_attach: Z   24/8
ums_attach: B1  0/1
ums_attach: B2  1/1
ums_attach: B3  2/1
ums_attach: B4  3/1
ums_attach: B5  4/1
ums_attach: B6  32/1
ums_attach: B7  33/1
ums_attach: size=15, id=0

Read as <Bits offset>/<Bits long>

Here's what usbhidctl shows:
# usbhidctl -f /dev/uhid0 -r
Report descriptor:
Total   input size 0 bytes
Total  output size 5 bytes
Total feature size 2 bytes

I also tried another experiment; a basic perl script with /dev/uhid0 as STDIN:
for (1..150) {
    my $data;
    sysread STDIN, $data, 150; # The max length it will read is 15
    my @data = split //, $data;
    @data = map { ord } @data;

    printf "%02x %02x %02x %02x %02x -- " splice @data, 0, 5 for (1..3);
    print "\n";
}

I got the same results as before: only the first three bytes ever changed, the 
rest were filled with the same junk from the malloc.

-- 
Kris Maglione

You may know where the market is going, but you can't
possibly know where it's going after that.