[Bug 110636] Re: hdparm - cannot set dma on IDE hard drive that works via pata

[Curtis Hovey]

** Changed in: linux-source-2.6.20 (Ubuntu)
     Assignee: Registry Administrators (registry) => (unassigned)

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Title:
  hdparm - cannot set dma on IDE hard drive that works via pata

Status in “hdparm” package in Ubuntu:
  Invalid
Status in “linux” package in Ubuntu:
  Invalid
Status in “linux-source-2.6.20” package in Ubuntu:
  Won't Fix
Status in “linux-source-2.6.22” package in Ubuntu:
  Won't Fix

Bug description:
  Binary package hint: hdparm

  In Feisty final, all of the disk drives are now called sdX instead of hdX. (as i understand they are now using the new pata driver. I have a regular IDE Drive and i want to enable DMA on it using the hdparm. Here is what i get:
  # hdparm -v -d1 /dev/sda

  /dev/sda:
   setting using_dma to 1 (on)
   HDIO_SET_DMA failed: Inappropriate ioctl for device
   IO_support   =  0 (default 16-bit)
   readonly     =  0 (off)
   readahead    = 256 (on)
   geometry     = 9729/255/63, sectors = 156301488, start = 0

  What can be done to enable DMA?

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