GDROM_STATUSCOMMAND_REG
__raw_writeb(GDROM_COM_IDDEV, GDROM_STATUSCOMMAND_REG);
__raw_writeb(GDROM_COM_PACKET, GDROM_STATUSCOMMAND_REG);
__raw_writeb(GDROM_COM_EXECDIAG, GDROM_STATUSCOMMAND_REG);
gd.status = __raw_readb(GDROM_STATUSCOMMAND_REG);
gd.status = __raw_readb(GDROM_STATUSCOMMAND_REG);
__raw_writeb(GDROM_COM_PACKET, GDROM_STATUSCOMMAND_REG);
__raw_writeb(0xEF, GDROM_STATUSCOMMAND_REG);