Hi Andreas!
 
> I really like to use DMA for my cdrom/burner but I cant figure out how to
> make it working!

> tapa ~ # hdparm -d1 /dev/cdrom
> /dev/cdrom:
> setting using_dma to 1 (on)
> HDIO_SET_DMA failed: Operation not permitted
> using_dma    =  0 (off)

Two hints, perhaps they help
- "hdparm -i $DEVICE" will display what the device can support
- I would run hdparm on the physical device file, that is /dev/hdc, not on
the cdrom-link.

> Does anyone of you know if there is DMA support for this cdrom-drive

It sounds like a plain old ATAPI drive, so should work with the generic
stuff. No specific knowledge about your drive, though.

Anno

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