Request for Long Write/Read details

I noticed vestiges of the new options parameter in the 5.40 APIs being able to support long reads/writes. There doesn’t seem to be anything in test directory that demonstrates how these can be utilized.

I’m only vaguely familiar with how these long read/writes work. I’m curious which parts I as the programmer do, and which parts the stack does for me. If I just issue a ValueChanged with an array longer than 20, does it automatically break it up into multiple writes with the start/stop values appropriately attached? I’d be curious what I do in my iOS app to see the WriteValue light up with those options indicating the start/stop of each segment.

I’m particularly curious about this, given the performance I’m seeing using a scheme I concocted myself for streaming arbitrary length packets over the characteristics.