IWM_CMD_WANT_SKB
.flags = IWM_CMD_WANT_SKB | IWM_CMD_SEND_IN_RFKILL,
.flags = (IWM_CMD_SYNC | IWM_CMD_WANT_SKB),
wantresp = hcmd->flags & IWM_CMD_WANT_SKB;
KASSERT((cmd->flags & IWM_CMD_WANT_SKB) == 0,
cmd->flags |= IWM_CMD_SYNC | IWM_CMD_WANT_SKB;
KASSERT((hcmd->flags & (IWM_CMD_WANT_SKB|IWM_CMD_SYNC))
== (IWM_CMD_WANT_SKB|IWM_CMD_SYNC), ("invalid flags"));