Re: CD Writing in 2.5.51

Markus Plail (linux-kernel@gitteundmarkus.de)
Wed, 11 Dec 2002 12:02:40 +0100

* mdew writes:
>awesome, i got it to work, thanks.. tho I'm now trying to enable the
>DMA on the drives... (unsuccessfully)

>/dev/hda == CDRW (24/12/40)
>/dev/hdb == DVDROM (8/40)

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

>/dev/hdb:
> setting using_dma to 1 (on)
> HDIO_SET_DMA failed: Operation not permitted
> using_dma = 0 (off)

Perhaps CONFIG_IDEDMA_ONLYDISK is set? Or you don't have compiled in
the specific driver for your chipset?

regards
Markus

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