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    SubjectRe: weird /proc/ide/hdx/settings
    Andre Hedrick wrote:
    >
    > Zero is a counting number. 0->255 == 1->256.

    I don't understand.
    This doesn't explain (value) is bigger than (max).

    Are you saying that (value) is counted from 1 , while
    (max) ( and min too ? ) is counted from 0 ?

    david

    > On Fri, 23 Feb 2001, David Balazic wrote:
    >
    > > Running kernel 2.4.2 :
    > >
    > > cat /proc/ide/hdc/settings
    > >
    > > name value min max mode
    > > ---- ----- --- --- ----
    > > bios_cyl 89355 0 65535 rw
    > > bios_head 16 0 255 rw
    > > bios_sect 63 0 63 rw
    > > breada_readahead 4 0 127 rw
    > > bswap 0 0 1 r
    > > current_speed 69 0 69 rw
    > > file_readahead 0 0 2097151 rw
    > > ide_scsi 0 0 1 rw
    > > init_speed 12 0 69 rw
    > > io_32bit 1 0 3 rw
    > > keepsettings 0 0 1 rw
    > > lun 0 0 7 rw
    > > max_kb_per_request 128 1 127 rw
    > > multcount 0 0 8 rw
    > > nice1 1 0 1 rw
    > > nowerr 0 0 1 rw
    > > number 2 0 3 rw
    > > pio_mode write-only 0 255 w
    > > slow 0 0 1 rw
    > > unmaskirq 1 0 1 rw
    > > using_dma
    > > --------------------%X---------------
    > >
    > > max_kb_per_request has value 128 , but max is 127 !?
    > >
    > > max for multcount is 8 , but my drive supports 16 sectors. ( see hdparm output below )
    > > If I set multcount to 8 sectors ( hdparm -m 8 /dev/hdc )
    > > then /proc/ide/hdc/settings will show :
    > > multcount 4 0 8 rw
    > >
    > > The values are divided by 2. Why ?
    > >
    > >
    > > hdparm -i /dev/hdc :
    > >
    > > /dev/hdc:
    > >
    > > Model=IBM-DTLA-307045, FwRev=TX6OA60A, SerialNo=YMEYMML9342
    > > Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
    > > RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=40
    > > BuffType=DualPortCache, BuffSize=1916kB, MaxMultSect=16, MultSect=off
    > > CurCHS=16383/16/63, CurSects=-66060037, LBA=yes, LBAsects=90069840
    > > IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120}
    > > PIO modes: pio0 pio1 pio2 pio3 pio4
    > > DMA modes: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5
    > >
    > > IDE interface is VIA xxx686b ( ATA-100 )
    > > IDE driver is VIA IDE v4.3
    > >
    > > --
    > > David Balazic
    > > --------------
    > > "Be excellent to each other." - Bill & Ted
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    > >
    >
    > Andre Hedrick
    > Linux ATA Development
    > ASL Kernel Development
    > -----------------------------------------------------------------------------
    > ASL, Inc. Toll free: 1-877-ASL-3535
    > 1757 Houret Court Fax: 1-408-941-2071
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    --
    David Balazic
    --------------
    "Be excellent to each other." - Bill & Ted
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