On Sat, Jan 26, 2019 at 06:43:58PM +0100, Thomas Schmitt wrote:
> Hi,
>
> > ERROR cdaudio-ng.cc:502 [scan_cd]: Cannot set drive speed.
Yeah we've talked about this one before.
> I would give set_speed_mmc() a try.
> Alternatively one could try to find a set-CD-speed ioctly of NetBSD.
OK, will give that a shot, probably tomorrow now.
> read_audio_sectors_netbsd: SCIOCCOMMAND1 cmd 0xbe sts 0 lsn 0 nblocks 37
> ...
> lib/driver/netbsd.c emits the message only if
>
> if (req.retsts != SCCMD_OK) {
>
> and then prints req.retsts as "sts %d".
>
> So why does the message get printed at all if req.retsts == 0 ?
> (Edd: Are the "lsn" and "nblocks" fields additions in your branch ?
> I cannot find such messages in my local clone.)
Yeah, I made modifications to the error strings. This function looks
like this on my local edits:
---8<---
static int
read_audio_sectors_netbsd(void *user_data, void *data, lsn_t lsn,
unsigned int nblocks)
{
...
if (ioctl(_obj->gen.fd, SCIOCCOMMAND, &req) < 0) {
fprintf(stderr, "%s: SCIOCCOMMAND1 cmd 0xbe sts %d lsn %lu
nblocks %u\n", __func__, req.retsts, lsn, nblocks);
return 1;
}
if (req.retsts != SCCMD_OK) {
fprintf(stderr, "%s: SCIOCCOMMAND2 cmd 0xbe sts %d lsn %lu
nblocks %u\n", __func__, req.retsts, lsn, nblocks);
return 1;
}
return 0;
}
--->8---
So to answer your question, it's the ioctl itself failing.
Notice SCIOCCOMMAND1 vs SCIOCCOMMAND2 -- I made that quick change so I could
see which bit fails.
sts is probably 0 since it hasn't been updated.
> > Fetching the first sector of a track always makes an SCSI error.
>
> If this is a real error (despite "sts 0") then it would be interesting
> to learn the Sense bytes and especially KEY, ASC, ASQ of the error.
I guess this is irrelevant now that we know that it's the ioctl failing.
FWIW, that first error was a perror(). I was wrong to change it. Reverting it,
it prints:
SCIOCCOMMAND: Invalid argument
So there's something wrong with the request, I suppose.
I'm out of time today, but tomorrow I can investigate the inputs. If there's
anything you'd specifically like to see the value of, let me know.
--
Best Regards
Edd Barrett
http://www.theunixzoo.co.uk
