UDMA with 2.6.8-rc1 on a G4pb cdrom

[Elimar Riesebieter <riesebie@lxtec.de>]

Hi all,

I am running sid on powerbookG4. How can I speedup the cdrom to
UDMA?

$ /sbin/hdparm -i /dev/hdc

/dev/hdc:

 Model=MATSHITACD-RW CW-8122, FwRev=BA21, SerialNo=
 Config={ Fixed Removeable DTR<=5Mbs DTR>10Mbs nonMagnetic }
 RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0
 BuffType=unknown, BuffSize=0kB, 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

$ /sbin/hdparm -X66 /dev/hdc

/dev/hdc:
 setting xfermode to 66 (UltraDMA mode2)

$ /sbin/hdparm -i /dev/hdc

/dev/hdc:

 Model=MATSHITACD-RW CW-8122, FwRev=BA21, SerialNo=
 Config={ Fixed Removeable DTR<=5Mbs DTR>10Mbs nonMagnetic }
 RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0
 BuffType=unknown, BuffSize=0kB, 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

All commands fired as root.

Any sugestions?

Thx

Elimar

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