BRCMU_CHAN_SB_NONE
ch.sb = BRCMU_CHAN_SB_NONE;
ch->sb = BRCMU_CHAN_SB_NONE;
ch->sb = BRCMU_CHAN_SB_NONE;
case BRCMU_CHAN_SB_NONE:
ch->sb = BRCMU_CHAN_SB_NONE;
if (ch->bw == BRCMU_CHAN_BW_20 || ch->sb == BRCMU_CHAN_SB_NONE)