Sorry for the confusion, I think the 1-wire stuff are the chips and components used to implement the iButton systems? The 1-wire bus host chips come in the same flavors as the ready-to-use iButton interfaces (serial, usb, parallel port, etc.): http://para.maxim-ic.com/compare.asp?Fam=1Wire&Tree=1Wire&HP=1-Wire.cfm&ln= All of those flavors, including the usb, could most easily be implmented in user-space, I'm thinking (makes debugging easier!). Phil Ulrich Moshammer wrote: > I have also implemented the I-Buttons but I will not implement the > I-Buttons I will implement the one wire bus. For the one wire bus > there are temperature sensors in TO92 package or SOT package > available. This is my main reason to build a kernel driver. > > >