Date: Thu, 15 Aug 1996 23:38:31 +0200 (MET DST) From: J Wunsch <j@uriah.heep.sax.de> To: freebsd-scsi@freebsd.org Cc: count@key.hole.fi (Bror 'Count' Heinola) Subject: Re: Pioneer CD changer problem Message-ID: <199608152138.XAA02774@uriah.heep.sax.de> In-Reply-To: <199608152059.XAA00463@key.hole.fi> from Bror 'Count' Heinola at "Aug 15, 96 11:59:11 pm"
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As Bror 'Count' Heinola wrote: > > Can you here it swapping the disk in by the same time? Does it > > continue to fail even after a few attempts? > > Yes, and yes. The second `yes' is strange. The Nakamichi seem to respond timely after a few attempts. Only mounting (i.e., cdopen()) appears to be that time-critical, once the disks are mounted, i can swap them around at will as long as i'm reading only one medium at a time. Concurrent reading will first thrash the changer, and eventually cause more serious faults later. > Anyways, any pointers to the code where I might go and change > the current timeout values? It's the 7th parameter to the function scsi_scsi_cmd(), have a look at /sys/scsi/cd.c. (Btw., things like scsi_scsi_cmd() are good candidates for section 9 man pages. If someone provides me with the input data, i'm offering help to -mdoc'ify them.) -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-)
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