Thanks, I know what DMA means. I just never heard that disabling DMA for a device will cause the system clock to run at 1/3 speed. I've run other disks with DMA disabled. But maybe thats really it.
> As for the USB 2 linked device, I am not sure... I know that DMA is disabled > on CD/DVD for some reason I do not remember, to avoid some problem in some > systems, but is enableable... I do not know if that apply to other devices > (firewire/USB2, etc), may be not. > > By the way, How do you use the USB2 device... what kernel do you have... I > though that USB2 support was available only from kernel 2.5 and above!. I think it was in the stock 2.4.19 and .20 kernels. I just selected support for usb 2.0 and for usb mass storage ( other stuff, like ide-scsi is necessary too.). I had all those modules compiled in case I ever got the hardware. So I got the dvd+-rw drive and a usb 2.0 pci card, and an box with an ide to usb interface. I threw the drive in the box, threw the card in the motherboard and rebooted. Upon connecting the cable, I could get at the drive via /dev/scd1. -- John Lapeyre http://physics.arizona.edu/~lapeyre -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
