"Giulio Orsero" <[EMAIL PROTECTED]> wrote:
> On 5/16/07, Joerg Schilling <[EMAIL PROTECTED]> wrote:
>
> > What would make sense is to try if there is a bug in the ATAPI <-> USB
> > adaprot that dauses a DMA error by trying to
> > reduce the 64 == 100 dec. to a lower number and check again.
>
> I assume you mean to reduce that number in order for cdrecord to try
> working around a bug in Linux atapi<->USB.
> Where in the cdrecord sources I find that 64 to be changed?
I am speaking about the converter hardware that may be defective.
scsi_mmc.c:
fillbytes((caddr_t) buffer, sizeof (buffer), '\0');
if (scsi_get_performance(scgp, buffer, 104, 100, 0x03, 0) < 0)
return (-1);
if you reduce the 4th parameter, you need to also reduce the DMA size
the furmula is here:
if (scsi_get_performance(scgp, buffer, 8+16*i, i, 0x00, 0x04) < 0)
Jörg
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