rhd_command
fis[rhd_command] = (ata_bio->flags & ATA_READ) ?
atacmd_toncq(xfer, &fis[rhd_command], &count, &features,
fis[rhd_command] =
fis[rhd_command] = ATAPI_PKT_CMD;
fis[rhd_command] = ata_c->r_command;
memcpy(&crqb->atacommand[2], &fis[rhd_command],
MIN(sizeof(crqb->atacommand) - 2, RHD_FISLEN - rhd_command));