Data Fields | |
u_char | fcb_blkbuf [MMC_BLOCK_SIZE] |
Internal block buffer. | |
u_long | fcb_blknum |
Next block number to read. | |
NUTDEVICE * | fcb_fsdev |
Attached file system device. | |
DOSPART | fcb_part |
Partition table entry of the currently mounted partition. |
u_char _MMCFCB::fcb_blkbuf[MMC_BLOCK_SIZE] |
Internal block buffer.
A file system driver may use this one or optionally provide it's own buffers.
Minimal systems may share their external bus interface with device I/O lines, in which case the buffer must be located in internal memory.
Next block number to read.
The file system driver will send a NUTBLKDEV_SEEK control command to set this value before calling the read or the write routine.
The number is partition relative.