Fwd: Re: Fwd: [MPlayer-users] SCSI emulation
Bob Lockie
bjlockie at lockie.ca
Thu Jan 16 06:00:37 CET 2003
On 01/10/03 16:28 H}kan Hjort spoke thusly
>Fri Jan 10 2003, Loïc Minier wrote:
>
>
>>H}kan Hjort <d95hjort at dtek.chalmers.se> - Tue, Jan 07, 2003:
>>
>>
>>
>>>>lr-xr-xr-x 1 root root 31 Jan 6 11:05 /dev/sr0 ->
>>>>scsi/host0/bus0/target1/lun0/cd
>>>>
>>>>
>> After exchanging some mails with Bob Lockie, I think the problem is
>> that there's no way for an ide-scsi emulated drive to change it's
>> DMA configuration under devfs because hdc disappears, so I suggested
>> creating another hdc with mknod. That's how you can change DMA for IDE
>> drives with ide-scsi under devfs.
>>
>>
>>
>The /dev/ide/host0/bus1/target0/lun0/generic node should still exist even
>when running ide-scsi. Using that you can change the DMA state without
>cdreating a /dev/hdc node.
>
Can the "Invalid argument's" be ignored safely?
# hdparm /dev/ide/host0/bus1/target0/lun0/generic
/dev/ide/host0/bus1/target0/lun0/generic:
HDIO_GET_MULTCOUNT failed: Invalid argument
IO_support = 0 (default 16-bit)
unmaskirq = 0 (off)
using_dma = 1 (on)
keepsettings = 0 (off)
readonly = 0 (off)
BLKRAGET failed: Invalid argument
HDIO_GETGEO failed: Invalid argument
# hdparm -i /dev/ide/host0/bus1/target0/lun0/generic
/dev/ide/host0/bus1/target0/lun0/generic:
Model=Pioneer DVD-ROM ATAPIModel DVD-106S 010, FwRev=E1.09, 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 udma3 *udma4
AdvancedPM=no
Drive conforms to: device does not report version: 1 2 3 4 5
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