This is the xorg.conf stanza required for a Trust MI-7700R multimedia mouse to set default left-hand use:
Section "InputClass" Identifier "Trust MM Mouse" MatchProduct "Trust Mouse 15206" Option "SendCoreEvents" "True" Option "ButtonMapping" "3 2 1 4 5 6 7 8 9 10" EndSection
And then it Just Worked, including horizontal scrolling.
I can’t vouch for the multimedia functions, though.
Memo to Self: Weirdly, the AA cells are in parallel, not series. Put them in “normally” and you get a dead short across a 3-V battery!
Maybe that’s why it’s obsolete?