This is my first try on implementing HMP passthrough via QMP. I've tried to follow Anthony's advice on creating a buffered char device.
If this approach is good (and the implementation is not faulty), I believe
this is very near a mergeble state (although I haven't tested much yet).
Example:
-> { "execute": "hmp_passthrough", "arguments": { "command-line": "print /i
10+25" } }
<- { "return": "35\r\n" }
Thanks.
