Hi, On 8/18/05, J.Bakshi <[EMAIL PROTECTED]> wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Is there any one using *SAMSUNG PUMA* hdd ? does it supports UDMA ?? > at my system (kernel 2.6.10) *hdparm /dev/hda* shows as below > > /dev/hda: > multcount = 0 (off) > IO_support = 0 (default 16-bit) > unmaskirq = 0 (off) > using_dma = 0 (off) > keepsettings = 0 (off) > readonly = 0 (off) > readahead = 256 (on) > geometry = 16383/255/63, sectors = 40060403712, start = 0 > > now */hdparm -d1 /dev/hda* shows > setting using_dma to 1 (on) > HDIO_SET_DMA failed: Operation not permitted > using_dma = 0 (off) > > here note from *Knoppix* I *can set UDMA Successfully with 52MB/s transfer > rate* and can also see *UDMA133* support from dmesg. > UDMA is set to AUTO in BIOS. so please tell me whether UDMA is there in my > HDD or Knoppix gives a false setting . Kindly let me know > > some more information > > dmesg|grep hd > hda: SAMSUNG SP0411N, ATA DISK drive > hdc: CREATIVECD4820E, ATAPI CD/DVD-ROM drive > hda: max request size: 1024KiB > hda: 78242976 sectors (40060 MB) w/2048KiB Cache, CHS=16383/255/63 > hda: cache flushes supported > hda: hda1 hda2 hda3 > > lspci|grep IDE > 0000:00:11.1 IDE interface: VIA Technologies, Inc. > VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06)
Recompile your kernel with DMA support for your chipset driver. Instead of module, built it into the kernel. In the make menucofing/xconfig(your prefered way), navigate to "Device Drivers>ATA/ATAPI/MFM/RRL support", then select the specific option for your chipset. You should select the following for your chipset. < > VIA82CXXX chipset support Hope that will turn on the dma for your hdd. -siddhartha -- To unsubscribe, send mail to [EMAIL PROTECTED] with the body "unsubscribe ilug-cal" and an empty subject line. FAQ: http://www.ilug-cal.org/node.php?id=3
