SATA_ADH_LBA
scmd->satacmd_device_reg = (SATA_ADH_LBA | ((lba >> 24) & 0xf));
scmd->satacmd_device_reg = SATA_ADH_LBA;
scmd->satacmd_device_reg = SATA_ADH_LBA;
scmd->satacmd_device_reg = SATA_ADH_LBA | ((lba >> 24) & 0xf);
scmd->satacmd_device_reg = SATA_ADH_LBA;
scmd->satacmd_device_reg = SATA_ADH_LBA | ((lba >> 24) & 0xf);