drivers/block/dummy.c File Reference

Dummy block device used for testing. More...

#include <assert.h>
#include <bitops.h>
#include <debug.h>
#include <malloc.h>
#include <status-codes.h>
#include <string.h>
#include <block/device.h>
#include <block/dummy.h>

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Functions
struct block_device *	dummy_blkdev_init (uint16_t block_size, uint32_t nr_blocks, bool writeable)
	Initialize a dummy block device.

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Detailed Description

Dummy block device used for testing.

This block device will silently consume any data written to it and will generate zeroes as data when read.

• Compiler: IAR EWAVR32 and GNU GCC for AVR32
• Supported devices: All devices
• AppNote:

Author:

Atmel Corporation: http://www.atmel.com
Support and FAQ: http://support.atmel.no/

Definition in file dummy.c.

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Function Documentation

struct block_device* dummy_blkdev_init	(	uint16_t	block_size,
		uint32_t	nr_blocks,
		bool	writeable
	)			[read]

Initialize a dummy block device.

Parameters:

	block_size	The size of each block in this device
	nr_blocks	The number of blocks available
	writeable	true if the device should be writeable, false if it should be read-only

Returns:

A new dummy block device, or NULL if insufficient memory is available.

Definition at line 138 of file dummy.c.

References block_device::alloc_req, BDEV_PRESENT, BDEV_WRITEABLE, block_device::block_size, block_device::flags, block_device::free_req, block_device::get_dev_id, memset(), block_device::nr_blocks, block_device::prepare_req, and set_bit().

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