I posted a question about the mouse in 2013: > From: Ruslan Khusnullin <ruslan.khusnullin@gma...> > Subject: Logitech T400 mouse with Plan9 and Plan9port Acme > Date: Mon, 25 Feb 2013 17:38:40 +0400 > > Considering how difficult it is to find a new usb mouse with 3 real > buttons I'm looking for workarounds. I have a Contour Mouse Perfit and > I enjoy it a lot but buying a new Contour Mouse is expensive and very > difficult in terms of shipping when you live in Russia, Contour just > don't ship it. > > I see there are few new "touch scroll" mice in stores and one of them > Logitech T400 looks not bad to me. Unfortunately they don't have wired > version but the "touch scroll" feels like a "styled 3rd button". > > Did anyone had a chance to test Logitech T400 mouse? Does it's middle > "touch scroll" work as a normal B2? Does it react on soft accidental > touch? Is it configurable? > > Thanks in advance.
And today I'm happy to tell you that I have this mouse working as needed. I bought it, liked that it has "3 buttons", but the sensor "touch zone" was distracting, unusual B2 placement and accidental scrolls. This mouse has strange buttons arrangement: O 8 O Left "O" is B1, right "O" is B3, "8" is touch zone, it really has two "buttons", upper zone is "Start menu" (for ms windows 8 os), bottom zone is B2. So it was uncomfortable to make chords. What I wanted is to disable "touch zone" (lose scrolling) and have B2 in upper zone instead of bottom. For long time I searched for Logitech Unifying protocol description, tried to reassign keys, no luck. Then thought that I can take mouse firmware, change it somehow and upload fixed firmware back. Today I opened the mouse case to look what electronics are in there and found that bottom zone of "touch zone" doesn't have a real button, there is one button for middle button, mouse just emits another button signal when "sees" that press was made on upper zone of "touch zone". So I just removed cable between "touch zone" and "main part" of mouse electronics and voila! Now I have a quite comfortable wireless mouse with 3 real buttons that act as good old 3 buttons and no scroll, and is still in stocks. I recommend this mouse (with the hack I described) to everyone who wants a new mouse with real 3 buttons for Plan 9 and Plan9port Acme, Sam, etc. Working fine with 9Pi too.
