CDROM optimizations? Udev ?

[Mark Haney]

On Thu, 2004-11-04 at 11:28, Kim Lux wrote:
> Could I ask some people to run hdparm on their cdroms and report their
> findings to the list ?
> 
> ie: $/sbin/hdparm /dev/hdc     (typically, some CDROMs might mount
> elsewhere.)
> 
> We've found some CDROMs are not optimized to use 32 bit access and with
> the irq still masked.  This might result in poor performance when using
> them as CD Burners or as a ripping source. 
> 
> Thanks.
> 

Here's mine, Gateway (Samsung) notebook.

/dev/hdc:
 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)
 readahead    = 256 (on)
 HDIO_GETGEO failed: Invalid argument

Question is, how do I change those parameters?

> 
> 
> -- 
> Kim Lux (Mr.)  Diesel Research Inc

--------------------------------------
Mark Haney
Network Administrator
InterAct Public Safety Systems
mhaney at interactsys.com
Fedora Core release 2 (Tettnang) Kernel: 2.6.8-1.521 GNU/Linux 
11:31:09 up 23 min, 2 users, load average: 0.83, 1.06, 0.87 
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