panic cpu 2 caller shutdown explanation needed...

I returned to my laptop and saw this report for a shutdown....anybody know the reason for it?? the rest of the text is in the "additional text"

panic(cpu 2 caller 0xffffff801b1cbbb7): "AppleUSBHostLegacyClient::setPowerState(0xffffff936bb07dc0 : 0xffffff801d89b726, 2 -> 1) timed out after 10238 ms"@/System/Volumes/Data/SWE/macOS/BuildRoots/5f3ad454b9/Library/Caches/com.apple.xbs/Sources/xnu/xnu-7195.141.49.702.12/iokit/Kernel/IOServicePM.cpp:5382

Backtrace (CPU 2), Frame : Return Address

0xffffffb0ea013ac0 : 0xffffff801aa802fd

0xffffffb0ea013b10 : 0xffffff801abc9193

0xffffffb0ea013b50 : 0xffffff801abb978a

0xffffffb0ea013ba0 : 0xffffff801aa24a2f

0xffffffb0ea013bc0 : 0xffffff801aa7fb1d

0xffffffb0ea013ce0 : 0xffffff801aa7fe13

0xffffffb0ea013d50 : 0xffffff801b29459a

0xffffffb0ea013dc0 : 0xffffff801b1cbbb7

0xffffffb0ea013e10 : 0xffffff801b1cb4d9

0xffffffb0ea013e20 : 0xffffff801b1e461e

0xffffffb0ea013e60 : 0xffffff801b1ca258

0xffffffb0ea013e80 : 0xffffff801aac6a15

0xffffffb0ea013ef0 : 0xffffff801aac7984

0xffffffb0ea013fa0 : 0xffffff801aa2413e