/usr/bin/defaults read /Library/Preferences/com.apple.usbmuxd

{
    BlackList =     (
        "com.apple.iTunes"
    );
}

/usr/bin/defaults write /Library/Preferences/com.apple.usbmuxd BlackList -array-add com.apple.iTunes

/usr/bin/defaults delete /Library/Preferences/com.apple.usbmuxd BlackList com.apple.iTunes

/usr/bin/defaults delete /Library/Preferences/com.apple.usbmuxd BlackList
Domain (/Library/Preferences/com.apple.usbmuxd) not found.

/usr/bin/defaults delete /Library/Preferences/com.apple.usbmuxd com.apple.iTunes
Domain (/Library/Preferences/com.apple.usbmuxd) not found.

delete <domain> <key>                deletes key in domain