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