_NUTBLOCKIO Struct Reference

Generic block I/O device interface structure. More...

#include <blockdev.h>

Collaboration diagram for _NUTBLOCKIO:

Data Fields
void *	blkio_info
	Device specific information.
uint32_t	blkio_blk_cnt
	Total number of blocks on this device.
uint32_t	blkio_blk_siz
	Number of bytes per block.
uint32_t	blkio_vol_bot
	First block for file system mount.
uint32_t	blkio_vol_top
	Number of blocks reserved on top of file system mount.
int(*	blkio_read )(NUTDEVICE *, uint32_t, void *, int)
	Read from block I/O device, starting at the specified block.
int(*	blkio_write )(NUTDEVICE *, uint32_t, CONST void *, int)
	Write to block I/O device, starting at the specified block.
int(*	blkio_write_P )(NUTDEVICE *, uint32_t, PGM_P, int)
	Write program memory to block I/O device, starting at the specified block.
int(*	blkio_ioctl )(NUTDEVICE *, int, void *)
	Control functions.

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Detailed Description

Generic block I/O device interface structure.

This is a virtual structure, used by the generic block I/O device driver.

Note:

Any real implementation must start with the same layout. If this structure is changed, we must update all implementations.

Definition at line 119 of file blockdev.h.

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Field Documentation

void* _NUTBLOCKIO::blkio_info

Device specific information.

Definition at line 123 of file blockdev.h.

Referenced by SpiAt45dInit(), SpiAt45dPageErase(), SpiAt45dPageRead(), SpiAt45dPages(), SpiAt45dPageSize(), and SpiAt45dPageWrite().

uint32_t _NUTBLOCKIO::blkio_blk_cnt

Total number of blocks on this device.

Definition at line 128 of file blockdev.h.

Referenced by NutBlockDeviceOpen(), and SpiAt45dInit().

uint32_t _NUTBLOCKIO::blkio_blk_siz

Number of bytes per block.

Definition at line 133 of file blockdev.h.

Referenced by NutBlockDeviceOpen(), and SpiAt45dInit().

uint32_t _NUTBLOCKIO::blkio_vol_bot

First block for file system mount.

Definition at line 138 of file blockdev.h.

Referenced by NutBlockDeviceOpen().

uint32_t _NUTBLOCKIO::blkio_vol_top

Number of blocks reserved on top of file system mount.

Definition at line 143 of file blockdev.h.

Referenced by NutBlockDeviceOpen().

int(* _NUTBLOCKIO::blkio_read)(NUTDEVICE *, uint32_t, void *, int)

Read from block I/O device, starting at the specified block.

Definition at line 148 of file blockdev.h.

Referenced by NutBlockDeviceRead().

int(* _NUTBLOCKIO::blkio_write)(NUTDEVICE *, uint32_t, CONST void *, int)

Write to block I/O device, starting at the specified block.

Definition at line 153 of file blockdev.h.

Referenced by NutBlockDeviceWrite(), and NutBlockDeviceWrite_P().

int(* _NUTBLOCKIO::blkio_write_P)(NUTDEVICE *, uint32_t, PGM_P, int)

Write program memory to block I/O device, starting at the specified block.

Definition at line 159 of file blockdev.h.

Referenced by NutBlockDeviceWrite_P().

int(* _NUTBLOCKIO::blkio_ioctl)(NUTDEVICE *, int, void *)

Control functions.

Definition at line 165 of file blockdev.h.

Referenced by NutBlockDeviceIOCtl().

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

• include/dev/blockdev.h