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| WD(4) | FreeBSD Kernel Interfaces Manual (i386) | WD(4) |
̾??
wd —
????Ū?? WD100x/IDE
?ǥ??????????ȥ??????ѥɥ饤??
????
controller wdc0 at isa? port "IO_WD1"
bio irq 14 disk wd0 at wdc0 drive 0
disk wd1 at wdc0 drive 1
CMD640b IDE ?????ȥ???????: options
"CMD640"
????
???Υɥ饤?Фǡ?Western Digital WD100x ??????ߥ??졼?Ȥ??? ?????ȥ?????????³???줿?ǥ??????˥????????Ǥ????褦?ˤʤ??ޤ??? ?????ˤϡ?WD1003 ST412 ?????ȥ????顢WD1007 ESDI ?????ȥ????顢 ?????ƤۤȤ??ɤΥޥ????ܡ??ɤˤ???????Ū?? IDE ?????ȥ????????ޤߤޤ???
WD100x ??????Ȥθߴ????ˤĤ??Ƥϡ??̾?????ȥ??????λ????????????????ޤ???
flags ?ѥ???????Ȥäơ??ɥ饤?Ф˥ҥ??Ȥ????????????뤳?Ȥ??Ǥ??ޤ???
16 ?ӥå??????Υե饰???ɥ饤?????ˤ??ꡢ ???줾???? 4 (????: ?ºݤˤ? 6) ?ĤΥӥåȥե??????ɤ??????ޤ?:
- 0x8000
- ?ɥ饤?֤? 32 ?ӥå?ž????ǽ???Ȥ????лȤ??ޤ???
- 0x4000
- ?ɥ饤?֤?????ץ⡼?ɤ???æ???Ƥ????Ȥ????Ǥ????褦?ʤ??С? ???𤷤Ƥ????Ȥߤʤ??ƺƽ????????ޤ???
- 0x2000
- ?Ƕ??? PCI ???åץ??åȤˤ????Х??ޥ??? DMA ??ǽ?????뤫Ĵ?٤????Ѥ??ޤ???
- 0x1000
- ?ǥե????Ȥ? CHS ???ɥ??å??ǤϤʤ???LBA ???ɥ??å????Ȥ??ޤ???
- 0x0f00
- ?إåɤο??? ((flags & 0xf00)>>8) ?ȸ??ʤ??ơ? ?????˹礦?褦?˥???????????????ľ???ޤ???
- 0x00ff
- ?ɥ饤?֤Υޥ?????????ž???⡼?ɤ??Ȥ????лȤ??ޤ??? ?????? (flags & 0x00ff) ????????ž???????ߤޤ???
???Υե饰?? drive ?Ԥ? 16 ?ӥå??????ǻ??ꤹ?뤫?? ???뤤?? controller ?Ԥ? 32 ?ӥå??????ǻ??ꤷ?ޤ??? ???ξ??硢???? 16 ?ӥåȤ??ֹ????礭?ʥɥ饤?֤?Ŭ?Ѥ????ޤ???
“CMD640”
???ץ??????ˤ??äơ?CMD640b IDE
?????ȥ??????η??٤??н褹???褦?ˤʤ??ޤ???
???Υ??ץ??????ꤵ???Ƥ??ơ? ???? PCI
???֥????ƥब???Υ??åפФ????????ˤϡ?
?ץ饤?ޥ??ȥ??????????Υ????ȥ???????Ʊ???ˤϻȤ????ޤ?????
??Ϣ?ե?????
- /dev/wd*
- ?ǥ??????Υ֥??å??ǥХ????Ρ???
- /dev/rwd*
- ?ǥ??????Υ????饯???ǥХ????Ρ???
- /sys/i386/conf/GENERIC
- wd ?ˤ??륷???ƥ??Τ????Υ????ͥ??å??????ͥ????????ե??????Υ????ץ?
- /sys/i386/isa/wd.c
- ?ɥ饤?ФΥ?????
??Ϣ????
????
???Υ????ȥ??????ȥǥ????????ȹ??碌?ϡ? ??ưŪ?˥Хåɥ֥??å????????뤿???ε??????????Ƥ??ޤ????? ?Хåɥ֥??å???Ĵ?٤??ˤ? bad144(8) ???¹Ԥ???ɬ?פ??????ޤ???
| August 31, 1994 | FreeBSD |
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