for higher performance, latency sensitivity, or a tight latency distribution, or interfacing with hardware (i.e. lvds)...there is a _really_ big difference betw

for higher performance, latency sensitivity, or a tight latency distribution, or interfacing with hardware (i.e. lvds)...there is a _really_ big difference between software running on top of linux and transistors (even if they are soft-configured) bldc motor control is a fine example. yes, you can buy a controller and program it from linux, but if you want to integrate current feedback in some novel way you should really be doing that in hardware.