Bug fix: On some drives the request for minimum speed yielded maximum speed

1.2.8
Thomas Schmitt 10 years ago
parent c2903ab717
commit a18c862e84
  1. 2
      cdrskin/cdrskin_timestamp.h
  2. 12
      libburn/mmc.c

@ -1 +1 @@
#define Cdrskin_timestamP "2013.02.26.080127"
#define Cdrskin_timestamP "2013.03.04.211258"

@ -4250,14 +4250,22 @@ int mmc_get_write_performance(struct burn_drive *d)
return 0;
/* first command execution to learn number of descriptors and
dxfer_len */
dxfer_len
*/
ret = mmc_get_write_performance_al(d, &alloc_len, &max_descr);
if (max_descr > 0 && ret > 0) {
/* Some drives announce only 1 descriptor if asked for 0.
So ask twice for non-0 descriptors.
*/
ret = mmc_get_write_performance_al(d, &alloc_len, &max_descr);
}
/*
fprintf(stderr,"LIBBURN_DEBUG: ACh alloc_len = %d , ret = %d\n",
alloc_len, ret);
*/
if (max_descr > 0 && ret > 0)
/* second execution with announced length */
/* final execution with announced length */
max_descr = (alloc_len - 8) / 16;
ret = mmc_get_write_performance_al(d, &alloc_len, &max_descr);
return ret;
}

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