read_disc_info
ret = read_disc_info(target->d_fd, di);
ret = read_disc_info(target->d_fd, di);
if (!read_disc_info(dev->d_fd, disc_info)) {
ret = read_disc_info(dev->d_fd, di);
if (!read_disc_info(dev->d_fd, di)) {
int read_disc_info(int fd, uchar_t *di);
ret = read_disc_info(target->d_fd, di);