EMU_CHAN_CCCA
emuxki_chan_write(&card->config, i, EMU_CHAN_CCCA, 0);
emuxki_chan_write(&card->config, chano, EMU_CHAN_CCCA,
#define EMU_CHAN_CCCA_CURRADDR EMU_MKSUBREG(24, 0, EMU_CHAN_CCCA)