On Thu, 2003-11-20 at 15:30, Charles Swiger wrote: ... > Right, but the acd device ['man 4 acd'] and the cd device ['man 4 cd'] > are not the same-- that's what the CAM subsystem is for, to provide > passthrough emulation for ATAPI devices so that you can send SCSI > commands to them. The "burncd" program works with ATAPI devices > directly; the programs with dvd+rw-tools need CAM. >
I mostly get what you are talking about here, but I'm not sure what this means in my situation. Sorry. > Hmm, also you should be configuring your device to enable UltraDMA > modes rather than PIO; try a "sysctl hw.ata.atapi_dma=1", or equivalent > in /etc/sysctl.conf or /boot/loader.conf. When I try that sysctl command I get this: # sysctl hw.ata.atapi_dma=1 sysctl: oid 'hw.ata.atapi_dma' is read only The same thing shows up at boot when I have the 'hw.ata.atapi_dma=1' part in /etc/sysctl.conf Charles, I appreciate all your help so far, and I hope that I'm not frustrating you too much. Thanks, Chris
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