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- "hdxlun=xx" : set the drive last logical unit.
- "hdx=flash" : allows for more than one ata_flash disk to be
- registered. In most cases, only one device will be present.
- "hdx=scsi" : the return of the ide-scsi flag, this is useful for
- allowing ide-floppy, ide-tape, and ide-cdrom|writers to use ide-scsi
- emulation on a device specific option.
- "idebus=xx" : inform IDE driver of VESA/PCI bus speed in MHz,
- where "xx" is between 20 and 66 inclusive, used when tuning chipset PIO
- modes. For PCI bus, 25 is correct for a P75 system, 30 is correct for
- P90,P120,P180 systems, and 33 is used for P100,P133,P166 systems. If in
- doubt, use idebus=33 for PCI. As for VLB, it is safest to not specify it.
- "idex=noprobe" : do not attempt to access/use this interface
- "idex=base" : probe for an interface at the addr specified, where
- "base" is usually 0x1f0 or 0x170 and "ctl" is assumed to be "base"+0x206
- "idex=base,ctl" : specify both base and ctl
- "idex=base,ctl,irq" : specify base, ctl, and irq number
- "idex=autotune" : driver will attempt to tune interface speed to the
- fastest PIO mode supported, for all drives on this interface. Not fully
- supported by all chipset types, and quite likely to cause trouble with
- older/odd IDE drives.
- "idex=noautotune" : driver will NOT attempt to tune interface speed, this
- is the default for most chipsets, except the cmd640
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