libnvme\_init\_ctrl(9) libnvme API manual libnvme\_init\_ctrl(9)

# [NAME](#NAME)

libnvme\_init\_ctrl - Initialize struct libnvme\_ctrl object for an existing controller.

# [SYNOPSIS](#SYNOPSIS)

**int libnvme\_init\_ctrl** **(struct libnvme\_host \*h ,** **struct libnvme\_ctrl \*c ,** **int instance );**

# [ARGUMENTS](#ARGUMENTS)

[h](#h)

struct libnvme\_host object

[c](#c)

struct libnvme\_ctrl object

[instance](#instance)

Instance number (e.g. 1 for nvme1)

# [RETURN](#RETURN)

0 on success, negative error code otherwise.

libnvme\_init\_ctrl September 2026

---

Document: libnvme_init_ctrl-libnvme3(2) from nvme-cli 3.1-r0 (Chainguard OS)
Source: https://github.com/linux-nvme/nvme-cli