block_device_operations Struct Reference

Block device operations. More...

#include <blockdev.h>

Data Fields
int(*	read )(struct block_device *blockdev, uint64_t block, unsigned long count, userptr_t buffer)
	Read block.
int(*	write )(struct block_device *blockdev, uint64_t block, unsigned long count, userptr_t buffer)
	Write block.

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Detailed Description

Block device operations.

Definition at line 18 of file blockdev.h.

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Field Documentation

int( * block_device_operations::read)(struct block_device *blockdev, uint64_t block, unsigned long count, userptr_t buffer)

Read block.

Parameters:

	blockdev	Block device
	block	Block number
	count	Block count
	buffer	Data buffer

Return values:

rc

Return status code

Referenced by guess_int13_geometry(), int13_extended_read(), and int13_read_sectors().

int( * block_device_operations::write)(struct block_device *blockdev, uint64_t block, unsigned long count, userptr_t buffer)

Write block.

Parameters:

	blockdev	Block device
	block	Block number
	count	Block count
	buffer	Data buffer

Return values:

rc

Return status code

Referenced by int13_extended_write(), and int13_write_sectors().

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The documentation for this struct was generated from the following file:

• include/gpxe/blockdev.h