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On Friday, 28 July 2006 22:36, Stefán István wrote: |
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> Hello! |
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> I'm not able to activate dma mode for cdrom drive in my laptop. |
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> # hdparm -d1 /dev/hdd |
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> |
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> /dev/hdd: |
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> setting using_dma to 1 (on) |
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> HDIO_SET_DMA failed: Operation not permitted |
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> using_dma = 0 (off) |
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> |
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> [snip] |
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> |
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> I think the problem is that there is no driver for this chipset compiled |
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> into the kernel. But I don't know which driver should be compiled into. I |
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> tried Intel PIIXn but it didn't help. |
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> |
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> Thanks for the help in advance, |
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> István |
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|
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You will need to set CONFIG_IDE=n, enable SCSI cdrom support |
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(CONFIG_BLK_DEV_SR) and enable the Intel PIIX sata driver |
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(CONFIG_SCSI_ATA_PIIX). |
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|
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DMA should then work perfectly fine. However one side effect is that your |
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cdrom drive will become /dev/sr0, although I guess this can be fixed with a |
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udev rule. |
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|
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-- |
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Raymond Lewis Rebbeck |
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|
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-- |
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gentoo-user@g.o mailing list |
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