A_SL_CFG
HFC_outb_nodebug(hc, A_SL_CFG, 0);
HFC_outb(hc, A_SL_CFG, 0);
HFC_outb(hc, A_SL_CFG, 0);
HFC_outb(hc, A_SL_CFG, (ch << 1) | routing);
HFC_outb(hc, A_SL_CFG, (ch << 1) | V_CH_DIR | routing);
HFC_outb(hc, A_SL_CFG, 0x80 | (ch << 1));
HFC_outb(hc, A_SL_CFG, 0x80 | 0x20 | (ch << 1) | 1);
HFC_outb(hc, A_SL_CFG, 0x80 | 0x40 | (ch << 1) | 1);
HFC_outb(hc, A_SL_CFG, 0x80 | 0x20 | (ch << 1));