Matthias Urlichs wrote:
Hi,
Manu Hallikainen:
Cannot enable dma mode to ide dvd/cd/hd drives.
Did it work with earlier kernels?
Did you load the chipset-specific module? Most ATA interfaces these days need one for DMA.
ide_generic 1472 0 ide_cd 42528 0 ide_core 138724 4 amd74xx,ide_disk,ide_generic,ide_cd cdrom 40284 2 sr_mod,ide_cd sata_sil 8004 6 libata 41412 1 sata_sil scsi_mod 124748 4 sr_mod,sbp2,sd_mod,libata
yes. amd74xx (I think discover loads it)
friend has same problem with: sata_via and via82cxxx
setting using_dma to 1 (on)
HDIO_SET_DMA failed: Operation not permitted
That error code ("Operation not permitted") is misleading, unfortunately.
