HA_WCOMMAND
dpt_outb(dpt, HA_WCOMMAND, command);
dpt_outb(dpt, HA_WCOMMAND, EATA_CMD_RESET);
outb((base + HA_WCOMMAND), EATA_CMD_RESET);
outb((base + HA_WCOMMAND), EATA_CMD_PIO_READ_CONFIG);