using wifi usbkey and ethernet on rpi3-b

[tech-lists]

Hi,

context: freebsd-12-rc3, raspberry pi3-b, external usb-connected hd,
2.5A PSU

Has anyone tried using a wifi interface (usb key format) and ethernet at
the same time? There is also a usb connected hard drive. I was wondering
if the wifi might interrupt the ethernet or the hard drive. Aren't they
all the same interface electronically? ie the usb/ethernet is more like
a usb bus.

(originally asked in freebsd-arm but it's very quiet there)

thanks,
-- 
J.