ufs_qcom_set..._40ns_cycles(9)

💅 ufs_qcom_set_clk_40ns_cycles — Kernel API Manual, section 9 🎀

okay so this is a page from the Kernel API Manual (section 9, the function-y one) and the function's full government name is ufs_qcom_set_clk_40ns_cycles, even though the page header is out here abbreviating it like ufs_qcom_set..._40ns_cycles(9). bestie, the header is just being shy. 💅

---

✨ NAME ✨

ufs_qcom_set_clk_40ns_cycles — literally just Configure 40ns clk cycles. that's the whole job. it configures 40ns clock cycles. iconique, no notes. ⏱️

---

🦋 SYNOPSIS 🦋

int ufs_qcom_set_clk_40ns_cycles (struct ufs_hba *hba , u32
cycles_in_1us );

that's it, that's the whole signature. returns an int, takes a struct ufs_hba * and a u32. clean. minimal. ate. 🫶

---

🌸 ARGUMENTS 🌸

• hba — the host controller instance. like, the one. your main character struct. 👑
• cycles_in_1us — the number of cycles in 1us that's getting configured. that's the value you're handing over. no cap, that's literally it. 🍓

---

💖 DESCRIPTION 💖

so what does it actually do? it returns an error if the dme get/set configuration for 40ns fails, and it returns zero on success. that's the entire vibe check: zero = slay, error = not slay. 😭

ngl the whole function is basically a yes/no girlie — success or error, no in-between, no drama, just 0 or not 0. 🎀

---

🔥 SEE ALSO 🔥

the kernel file lives at ./drivers/ufs/host/ufs-qcom.c, and these besties are all in the same friend group:

• ufs_qcom_config_ice_allocator(9)
• ufs_qcom_cfg_timers(9)
• ufs_qcom_double_t_adapt_l0l1l2l3(9)
• ufs_qcom_advertise_quirks(9)
• ufs_qcom_setup_clocks(9)
• ufs_qcom_init(9)
• ufs_qcom_device_reset(9)
• ufs_qcom_fw_managed_device_reset(9)
• ufs_qcom_probe(9)
• ufs_qcom_remove(9)

---

and that's the page!! 💜 cute lil sign-off real quick: this one lives in ./drivers/ufs/host, it's dated October 2026, and it answers to ufs_qcom_set..._40ns_cycles(9) — the same abbreviated name as the top, we stay consistent in this house. 🌈⭐ go configure some cycles bestie, you got this 🧚💖