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Raymond Lewis Rebbeck wrote: |
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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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Isn't this deprecated? Wouldn't a better choice be to install the |
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SATA driver ebuild? (Mainly trying to eliminate my own confusion here.) |
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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 |
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with a |
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> udev rule. |
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> |
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- -- |
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gentux |
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echo "hfouvyyAhnbjm/dpn" | perl -pe 's/(.)/chr(ord($1)-1)/ge' |
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gentux's gpg fingerprint ==> 5495 0388 67FF 0B89 1239 D840 4CF0 39E2 |
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18D3 4A9E |
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Version: GnuPG v1.4.4 (GNU/Linux) |
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iD8DBQFEymmeTPA54hjTSp4RAq00AKCCmRYYwKBE6fUCSRN70wHO7VMlSgCfQZsE |
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5D5oHh61ECHFb9CNJEgP17w= |
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=wpX1 |
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-----END PGP SIGNATURE----- |
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-- |
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