usbh_diskio.c File Reference

USB Host Disk I/O driver. More...

#include "ff_gen_drv.h"
#include "usbh_diskio.h"

Include dependency graph for usbh_diskio.c:

Macros
#define	USB_DEFAULT_BLOCK_SIZE   512

Functions
DSTATUS	USBH_initialize (BYTE lun)
	Initializes a Drive. More...
DSTATUS	USBH_status (BYTE lun)
	Gets Disk Status. More...
DRESULT	USBH_read (BYTE lun, BYTE *buff, DWORD sector, UINT count)
	Reads Sector(s) More...

Variables
USBH_HandleTypeDef	hUSB_Host
const Diskio_drvTypeDef	USBH_Driver

Detailed Description

USB Host Disk I/O driver.

(based on usbh_diskio_template.c v2.0.2)

Attention

© Copyright (c) 2021 STMicroelectronics. All rights reserved.

This software component is licensed by ST under Ultimate Liberty license SLA0044, the "License"; You may not use this file except in compliance with the License. You may obtain a copy of the License at: www.st.com/SLA0044

Macro Definition Documentation

USB_DEFAULT_BLOCK_SIZE

#define USB_DEFAULT_BLOCK_SIZE   512

Function Documentation

USBH_initialize()

DSTATUS USBH_initialize

(

BYTE

lun

)

Initializes a Drive.

Parameters

lun

: lun id

Return values

DSTATUS

Operation status

USBH_read()

DRESULT USBH_read	(	BYTE	lun,
		BYTE *	buff,
		DWORD	sector,
		UINT	count
	)

Reads Sector(s)

Parameters

lun	: lun id
*buff	Data buffer to store read data
sector	Sector address (LBA)
count	Number of sectors to read (1..128)

Return values

DRESULT

Operation result

References hUSB_Host, res, and USBH_ErrLog.

USBH_status()

DSTATUS USBH_status

(

BYTE

lun

)

Gets Disk Status.

Parameters

lun

: lun id

Return values

DSTATUS

Operation status

References hUSB_Host, and res.

Variable Documentation

hUSB_Host

USBH_HandleTypeDef hUSB_Host

USBH_Driver

const Diskio_drvTypeDef USBH_Driver

Initial value:

= {
    USBH_initialize, USBH_status, USBH_read,
 
 
 
 
 
 
}