Same as [[#Cmd18]] except the value from the request is returned directly, without calling the vfunc.
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This is not used on retail.
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== Cmd22 ==
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Takes an input u32, no output.
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Same as [[#Cmd21]] except this uses message 0x37 with the input u32. This is handled by writing the u32 into a global field (default value is 0xBC), which is used during configuration for [[#Cmd19|"wowl"]].