My tool of choice here is www.acronymfinder.com.
That didn't really help so I just used Google which revealed it stood for "Qualcomm MSM Interface" - WOW, what a coincidence, "MSM".
So now I have to spell out "MSM" in full and I'm pretty sure it didn't mean "Mazda-Speed Miata" in this context.
I went back to www.acronym finder and was shocked at the first "entry"

FYI: The one I was looking for was "Mobile Station Modem (Qualcomm)"