CDROM optimizations? Udev ?

[Douglas Furlong]

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.
>
>
>
>  
>
/dev/hdc:
 HDIO_GET_MULTCOUNT failed: Invalid argument
 IO_support   =  1 (32-bit)
 unmaskirq    =  1 (on)
 using_dma    =  1 (on)
 keepsettings =  0 (off)
 readonly     =  0 (off)
 readahead    = 256 (on)
 HDIO_GETGEO failed: Invalid argument

Do you need to know the drive make/model?

Doug