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?
Jerry