DMA gia DVD

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Anakreon wrote:
> Antimetopizo ena problima me tin energopoiisi tou DMA gia to DVD drive.
> Exo syndesei me to idio kalodio to DVD kai to CDR me tin mitriki.
> 
> I entoli  hdparm -i /dev/hdc typonei:
> ====================================
> /dev/hdc:
> 
> Model=Pioneer DVD-ROM ATAPIModel DVD-117 0107, FwRev=E1.07, SerialNo=
> Config={ Fixed Removeable DTR<=5Mbs DTR>10Mbs nonMagnetic }
> RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0
> BuffType=13395, BuffSize=64kB, MaxMultSect=0
> (maybe): CurCHS=0/0/0, CurSects=0, LBA=yes, LBAsects=0
> IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
> PIO modes:  pio0 pio1 pio2 pio3 pio4 DMA modes:  sdma0 sdma1 sdma2 mdma0 
> mdma1 mdma2 UDMA modes: udma0 udma1 udma2 AdvancedPM=no
> Drive conforms to: device does not report version:
> * signifies the current active mode
> ======================================
> otan grafo hdparm -d1 /dev/hdc typonete to parakato minima sfalmatos:
> /dev/hdc:
> setting using_dma to 1 (on)
> HDIO_SET_DMA failed: Operation not permitted
> using_dma    =  0 (off)
> 
> Den katalabeno giati apotygxanei i energopoiisi tou DMA afou is syskeyei 
> to ypostirizei.
> 
> Anakreon
> 

Ti kernel trexeis ?
Ton exeis kanei compile 'h einai o built in?
Exeis balei ston kernel to DMA sta IDE k epipleon
prepei na exeis apenergopoihsh tin epilogi pou
leei oti DMA upostiriksei mono gia HardDisks.

Eixa to idio poblima me to woody(Debian) otan ton eixa kanei
egw compile(enw eixa balei ola ta aparaitita modules) k
to elusa me ena kainourgio compile sto 2.6.6

Adrian.