On Mon, 2008-12-22 at 15:27 -0500, Jerry Geis wrote:

I am running centos 5.2 i686.

The /boot/config indicates that VIA82CXXXX is built into the kernel. CONFIG_BLK_DEV_VIA82CXXX=y

my lspci -v gives 00:0f.0 IDE interface: VIA Technologies, Inc. CX700M2 IDE (prog-if 8a [Master SecP PriP]) Subsystem: VIA Technologies, Inc. Unknown device 0581 Flags: bus master, medium devsel, latency 32 I/O ports at fc00 [size=16] Capabilities: [b0] Power Management version 2

Which I think is the VIA part.

when I do "hdparm /dev/hdc" I get /dev/hdc: 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 = 15733/16/63, sectors = 15858864, start = 0

when I do "hdparm -d1 /dev/dhc" I get

/dev/hdc: setting using_dma to 1 (on) HDIO_SET_DMA failed: Operation not permitted using_dma = 0 (off)

I get operation not permitted. How do I enable DMA mode for this device?

----\ You try setting hdparm -p4 /dev/hda Just to see if you can set the PIO Mode? How old is the Disk in question?

JohnStanley