On 06/11/2009 12:08 AM, Colin Williams wrote:
I filed a bug on ubuntu launchpad https://bugs.launchpad.net/ubuntu/+source/linux/+bug/357531. Is it indeed a bug? Is their some kind of module flag or patch? Is their a way to enable dma on my dvd-rom? I'd love to watch dvd's on my laptop can one of module developers give me some insight?
Doesn't look like the DVD-ROM is connected via PATA or SATA, looks like it's actually connected via a USB connection internally? That seems a bit bizarre.. Can you do a lsusb to verify if that's the case?
If it is, then the kernel doesn't have any control over the DMA state of the drive, as that's purely under control of the USB-to-ATA bridge chip they're presumably using.
-- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
