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SubjectRe: Again... DMA speed too slow
Andrew Morton wrote:
> On Sun, 30 Mar 2008 23:53:57 +0200 "J.A. Magallón" <jamagallon@ono.com> wrote:
>
>> Hi all...
>>
>> I have tried to burn some data from the commandline with wodim (since time
>> ago I just used beasero...), and I have noticed this (media is CD, not DVD):
>>
>> Vendor_info : 'HL-DT-ST'
>> Identification : 'DVDRAM GSA-H10N '
>> Revision : 'JL12'
>> Device seems to be: Generic mmc2 DVD-R/DVD-RW.
>> Using generic SCSI-3/mmc CD-R/CD-RW driver (mmc_cdr).
>> Driver flags : MMC-3 SWABAUDIO BURNFREE
>> Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R16 RAW/R96P RAW/R96R
>> Speed set to 8467 KB/s
>> wodim: DMA speed too slow (OK for 5x). Cannot write at speed 48x.
>> Starting to write CD/DVD at speed 48.0 in real TAO mode for single session.
>>
>> I just can burn CDs at 5x ??
>> But then the program tries to write at 48x.
>> It the DMA message really true ?

Which controller are you on? I bet the recording itself will work fine
on 48x. It's probably that READ/WRITE BUFFERs are executed using PIO
for compatibility reasons.

--
tejun
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