USB doesn't carry a ps2 signal, and there are no spare wires to just do a pin swap like you propose. Those adapters would have to have relied on additional, proprietary electronics in the mouse they were paired with, just like the reverse direction. You can find affordable ps2 dev to USB active converters, but I've never seen the reverse. <div class="gmail_quote">On Mar 24, 2012 2:33 PM, "Marr" <<a href="mailto:wm33@att.net">wm33@att.net</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> On Saturday 24 March 2012 13:20:40 Richard Houser wrote: > Those inline ps2 to usb converters were usually > hardware specific and definately nonstandard. I was referring to the simple adapters, which basically just adapted a USB mouse/trackball (i.e. the peripheral) to a PS/2 form-factor (PC end). There are no active electronics involved -- it's just a pin-swap. I think you must be referring to those adapters that went the other way, converting PS/2 peripherals (often dual-headed, for PS/2 mouse + PS/2 keyboard) into USB at the PC end. Those latter adapters have some sort of electronics in the middle of the cable and were definitely more of a hit-or- miss proposition. Chick needs the former, not the latter. Bill _______________________________________________ linux-user mailing list <a href="mailto:linux-user@egr.msu.edu">linux-user@egr.msu.edu</a> <a href="http://mailman.egr.msu.edu/mailman/listinfo/linux-user" target="_blank">http://mailman.egr.msu.edu/mailman/listinfo/linux-user</a> </blockquote></div>