
Data Fields | |
| NUTDEVICE * | fcb_fsdev |
| Attached file system device. | |
| DOSPART | fcb_part |
| Partition table entry of the currently mounted partition. | |
| u_long | fcb_blknum |
| Next block number to read. | |
| u_char | fcb_blkbuf [MMC_BLOCK_SIZE] |
| Internal block buffer. | |
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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. |
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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. |