USB control out not showing data in ETW

Apologies if this is the wrong forum, but I wasn’t sure where else to ask my question.
I’m finding that when I look at a USB ETW trace (taken with logman from a command line, or using the Message Analyser GUI) I’m able to see the data on a interrupt in transfer from a HID device, but I’m not able to see the data on a control out to the device. I figure this is a newbie problem, but for the life of me I can’t figure out what I’m doing wrong.