bios_param
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Name

bios_param — fetch head, sector, cylinder info for a disk

Synopsis

int bios_param (struct scsi_device *  sdev,
 struct block_device *  bdev,
 sector_t  capacity,
 int  params[3]);

Arguments

sdev

pointer to scsi device context (defined in include/scsi/scsi_device.h)

bdev

pointer to block device context (defined in fs.h)

capacity

device size (in 512 byte sectors)

params[3]

three element array to place output: params[0] number of heads (max 255) params[1] number of sectors (max 63) params[2] number of cylinders

Description

Return value is ignored

Locks

none

Calling context

process (sd)

Notes

an arbitrary geometry (based on READ CAPACITY) is used if this function is not provided. The params array is pre-initialized with made up values just in case this function doesn't output anything.

Optionally defined in

LLD

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