powercfg -requestsoverride errors

A Realtek driver is preventing my PC from going to sleep.

I am executing powercfg -requestsoverride

on this driver:

Realtek High Definition Audio (HDAUDIO\FUNC_01&VEN_10EC&DEV_0662&SUBSYS_10280622&REV_1003\4&233ad700&0&0201)

I get this error:

The ampersand (&) character is not allowed. The & operator is reserved for future use; wrap an ampersand in double
quotation marks ("&") to pass it as part of a string.

Even with all the &s double quoted I get the same message.

Any ideas why?

What should be proper syntax?

Thanks

Bob Seymour