nuttx/Documentation/applications/netutils
Swatantra Yadav 5b597668f0 Documentation/netutils: add comprehensive guide for tftpc
Provide a complete documentation guide for the tftpc (TFTP client) network
utility in Documentation/applications/netutils/tftpc/index.rst, replacing
the previous 5-line placeholder stub.

Includes:
- Architecture overview (NSH get/put engine + programmatic C APIs)
- Key features (RFC 1350, octet/netascii modes, streaming callbacks, dynamic TID port negotiation)
- Configuration options table and networking prerequisites
- NSH get and put command synopses, option flags, and terminal examples
- C API reference for filesystem helpers (tftpget, tftpput) and streaming callbacks (tftpget_cb, tftpput_cb)
- Complete, runnable C application example demonstrating callback-based streaming downloads

Addresses #11081

Signed-off-by: Swatantra Yadav <maverickswatantra@gmail.com>
2026-10-08 15:55:47 -03:00
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index.rst