iio_device_alloc(9)

✨ iio_device_alloc(9) ✨

okay so this is a page from the Kernel API Manual, and honestly? it's a little baddie. it does exactly one thing and it does it flawlessly. no notes. 💅

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💖 NAME 💖

iio_device_alloc — allocate an iio_dev from a driver

like, you're a driver, you need an iio_dev, boom, this hands you one. match made in heaven fr fr 🫶

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🌸 SYNOPSIS 🌸

struct iio_dev * iio_device_alloc (struct device *parent , int sizeof_priv );

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🎀 ARGUMENTS 🎀

• parent — the parent device. your iio_dev's literal parent, the one it looks up to 🥺
• sizeof_priv — the space to allocate for the private structure. yes bestie, you get room for your own little secrets in there too 💜

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🦋 RETURN 🦋

pointer to the allocated iio_dev on success, NULL on failure 😭 — so like, always check it, that's the vibe check. if it's NULL, it did not slay.

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🔥 SEE ALSO 🔥

kernel file ./drivers/iio/industrialio-core.c — and the whole friend group:

• iio_device_id(9)
• iio_buffer_enabled(9)
• iio_find_channel_from_si(9)
• iio_device_set_clock(9)
• iio_device_get_clock(9)
• iio_get_time_ns(9)
• iio_read_mount_matrix(9)
• iio_format_value(9)
• __iio_str_to_fixpoint(9)
• iio_str_to_fixpoint(9)
• iio_free_chan_devattr_list(9)
• iio_device_free(9)
• devm_iio_device_alloc(9)
• iio_chrdev_open(9)
• iio_chrdev_release(9)
• iio_active_scan_mask_index(9)
• iio_device_unregister(9)
• __iio_dev_mode_lock(9)
• __iio_dev_mode_unlock(9)
• iio_device_get_current_mode(9)

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and that's the whole page, periodt. 💫

signing off from ./drivers/iio — October 2026 — mwah, ily, go allocate something iconic 👑💖