26b7de0f34
Fix the issue where fat driver is not using the last two clusters in the file system. The fat parameter fs->fs_nclusters is the maximum number of data clusters; this doesn't include the two in the beginning. Many checks in the fat driver treat the fs->fs_nclusters-1 as being the last accessible cluster, which is not right, the last accessible one is actually this number + 2 when the cluster count includes the two first ones. Normally this is not an issue when writes are being done through the same driver, the last two clusters are just never used. But if the filesystem is modified by external driver, for example with a populated fat created with PC, or modifying the FS via USB-MSC, this leads to the fat driver not being able to read anything that uses the last two clusters. Signed-off-by: Jukka Laitinen <jukkax@ssrc.tii.ae> |
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| Documentation | ||
| arch | ||
| audio | ||
| binfmt | ||
| boards | ||
| cmake | ||
| crypto | ||
| drivers | ||
| dummy | ||
| fs | ||
| graphics | ||
| include | ||
| libs | ||
| mm | ||
| net | ||
| openamp | ||
| pass1 | ||
| sched | ||
| syscall | ||
| tools | ||
| video | ||
| wireless | ||
| .asf.yaml | ||
| .gitignore | ||
| .yamllint | ||
| AUTHORS | ||
| CMakeLists.txt | ||
| CONTRIBUTING.md | ||
| INVIOLABLES.md | ||
| Kconfig | ||
| LICENSE | ||
| Makefile | ||
| NOTICE | ||
| README.md | ||
| ReleaseNotes | ||
README.md
Apache NuttX is a real-time operating system (RTOS) with an emphasis on standards compliance and small footprint. Scalable from 8-bit to 64-bit microcontroller environments, the primary governing standards in NuttX are POSIX and ANSI standards. Additional standard APIs from Unix and other common RTOSs (such as VxWorks) are adopted for functionality not available under these standards, or for functionality that is not appropriate for deeply-embedded environments (such as fork()).
For brevity, many parts of the documentation will refer to Apache NuttX as simply NuttX.
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First time on NuttX? Read the Getting Started guide! If you don't have a board available, NuttX has its own simulator that you can run on terminal.
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You can find the current NuttX documentation on the Documentation Page.
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The old NuttX documentation is still available in the Apache wiki.
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License
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