This is just a quick post to log how to get the Monster Joysticks retro gaming DB9 to USB adapter working with The Spectrum so I can find the information again when I need it.
Following the guide - Create a file in the root of the USB stick called “gamecontrollerdb.txt” and put these entry into it.
03000000c0160000dc27000000000000,MJ2DB9,platform:Linux,a:b1,b:b0,dpup:-a1,dpdown:+a1,dpleft:-a0,dpright:+a0,
03000000c0160000dc27000001010000,Monster Joysticks MJ2DB9,a:b1,b:b4,back:b6,leftx:a0,lefty:a1,leftshoulder:b0,rightshoulder:b5,start:b7,x:b3,y:b2,platform:Linux,
Couldn’t have figured it out without this post