Re: lug-bg: cdrom reading ?

[Tsvetin Vasilev <ceci@xxxxxx>]

raptor wrote:

> # dmesg | grep hd
> ide_setup: hdc=ide-scsi
> hda: ST380021A, ATA DISK drive
> hdc: SONY CD-RW CRX175A1, ATAPI CD/DVD-ROM drive
> hda: attached ide-disk driver.
> hda: 156301488 sectors (80026 MB) w/2048KiB Cache, CHS=9729/255/63
>    ide0: BM-DMA at 0xff00-0xff07, BIOS settings: hda:DMA, hdb:DMA
>    ide1: BM-DMA at 0xff08-0xff0f, BIOS settings: hdc:DMA, hdd:DMA
> hdc: attached ide-scsi driver.
>
> # hdparm /dev/hda
> /dev/hda:
> multcount    = 16 (on)
> IO_support   =  0 (default 16-bit)
> unmaskirq    =  0 (off)
> using_dma    =  1 (on)
> keepsettings =  0 (off)
> readonly     =  0 (off)
> readahead    =  8 (on)
> geometry     = 9729/255/63, sectors = 156301488, start = 0
>
> # hdparm /dev/hdc
> /dev/hdc: No such file or directory
>
>  
hdc: attached ide-cdrom driver.
hdc: ATAPI 32X CD-ROM drive, 128kB Cache, DMA


# hdparm /dev/hdc

/dev/hdc:
HDIO_GET_MULTCOUNT failed: Invalid argument
I/O support  =  0 (default 16-bit)
unmaskirq    =  0 (off)
using_dma    =  1 (on)
keepsettings =  0 (off)
HDIO_GET_NOWERR failed: Invalid argument
readonly     =  1 (on)
readahead    =  8 (on)
HDIO_GETGEO failed: Invalid argument
busstate     =  1 (on)
backup:~# hdparm -c1 -d1 /dev/hdc

/dev/hdc:
setting 32-bit I/O support flag to 1
setting using_dma to 1 (on)
I/O support  =  1 (32-bit)
using_dma    =  1 (on)



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