disk_write

The disk_write writes sector(s) to the disk.

DRESULT disk_write (
  BYTE Drive,          /* Physical drive number */
  const BYTE* Buffer,  /* Pointer to the write data (may be non aligned) */
  DWORD SectorNumber,  /* Sector number to write */
  BYTE SectorCount     /* Number of sectors to write */
);

Parameters

Drive

Specifies the physical drive number.

Buffer

Pointer to the byte array to be written. The start address specified by upper layer may be aligned or non-aligned.

SectorNumber

Specifies the start sector number in logical block address (LBA).

SectorCount

Specifies the number of sectors to write. The value can be 1 to 255.

Return Values

RES_OK (0)

The function succeeded.

RES_ERROR

Any hard error occured during the write operation and could not recover it.

RES_WRPRT

The medium is write protected.

RES_PARERR

Invalid parameter.

RES_NOTRDY

The disk drive has not been initialized.

Description

This function is not required in read only configuration.