devm_hte_request_ts_ns(9)

💅 devm_hte_request_ts_ns(9) 💅

okay bestie, welcome to the Kernel API Manual ✨ — this one's a resource-managed API to request and enable hardware timestamp in nanoseconds. no cap, it's a whole vibe. 🎀

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✨ NAME ✨

devm_hte_request_ts_ns — the resource managed API that requests and enables hardware timestamp in nanoseconds. she does both. main character energy fr fr 💅

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🦋 SYNOPSIS 🦋

int devm_hte_request_ts_ns (struct device *dev , struct hte_ts_desc
*desc , hte_ts_cb_t cb , hte_ts_sec_cb_t tcb , void *data );

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🌸 ARGUMENTS 🌸

• dev — the HTE consumer/client device. that's your device bestie, say hi 👋
• desc — a pre-allocated and initialized timestamp descriptor. you gotta bring your own, already set up. no shortcuts 🙈
• cb — the callback that pushes the timestamp data to the consumer. this is the one doing the actual delivering 📬
• tcb — optional callback. if you provide it, the subsystem initializes a workqueue for it. it gets called when cb returns HTE_RUN_SECOND_CB. yes, that's the exact flag, write it down 💀
• data — client data, used during both the cb and tcb callbacks. shared snack bowl energy 🍓

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💖 DESCRIPTION 💖

the entity here is provider specific — think GPIO lines, signals, buses, etc... (yes, the original really does trail off with three dots, she's mysterious like that ✨).

the API allocates all the necessary resources and enables the timestamp. then — and this is the iconic part — it deallocates and disables automatically when the consumer exits. that's the managed in resource managed, bestie. no manual cleanup, no tears 😭🫶

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🔥 CONTEXT 🔥

Holds mutex lock. 🔒 so like, behave.

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⭐ RETURN ⭐

Returns 0 on success, or a negative error code on failure. that's it, that's the whole vibe check 💀

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/hte/hte.c
• struct hte_ts_info(9)
• struct hte_device(9)
• hte_ts_put(9)
• hte_disable_ts(9)
• hte_enable_ts(9)
• of_hte_req_count(9)
• hte_ts_get(9)
• hte_request_ts_ns(9)
• hte_init_line_attr(9)
• hte_get_clk_src_info(9)
• hte_push_ts_ns(9)
• devm_hte_register_chip(9)

like a whole friend group of functions, go say hi to all of them 🧚💜

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and that's the page!! mwah 💋 this little read dropped from ./drivers/hte back in October 2026 — iconic date, iconic folder, and honestly? you ate that. periodt. 👑🌸