iio_device_set_drvdata(9)

💖 iio_device_set_drvdata 💖

okay so this is a page straight out of the Kernel API Manual (yes, the kernel kernel, like the literal operating system kernel, we're fancy now 🎀) and honestly bestie, it's a tiny one but it's lowkey important. grab a strawberry 🍓 and let's go.

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✨ NAME ✨

iio_device_set_drvdata — set device driver data, that's it, that's the whole vibe 💅

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🌸 SYNOPSIS 🌸

void iio_device_set_drvdata (struct iio_dev *indio_dev , void *data );

like, it returns nothing, it's a void, it just does the thing and leaves. main character energy fr 🫶

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🦋 ARGUMENTS 🦋

• indio_dev — the IIO device structure 👑 this is the lil device you're attaching stuff to
• data — driver specific data 🌈 the arbitrary pointer that's about to find a new home

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💜 DESCRIPTION 💜

so what this does is it lets you attach an arbitrary pointer to an IIO device ✨ like, any pointer you want, no questions asked.

and then later? you can get it back with iio_device_get_drvdata 😭 it's giving "put it in the group chat, read it later" energy and honestly we love a two-function system.

no cap, that's the whole description. it's a small function but it's iconic in its own way 💀

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🔥 SEE ALSO 🔥

okay this part is LONG, bestie, but we do not skip the boring parts in this house 🧚 every single one of these is going on the list:

Kernel file ./include/linux/iio/iio.h, plus:

• struct iio_chan_spec_ext_info(9)
• struct iio_enum(9)
• IIO_ENUM(9)
• IIO_ENUM_AVAILABLE(9)
• struct iio_mount_matrix(9)
• IIO_MOUNT_MATRIX(9)
• struct iio_event_spec(9)
• IIO_SCAN_FORMAT_SIGNED_INT(9)
• IIO_SCAN_FORMAT_UNSIGNED_INT(9)
• IIO_SCAN_FORMAT_FLOAT(9)
• struct iio_scan_type(9)
• struct iio_chan_spec(9)
• iio_channel_has_info(9)
• iio_channel_has_available(9)
• struct iio_info(9)
• struct iio_buffer_setup_ops(9)
• struct iio_dev(9)
• iio_device_register(9)
• devm_iio_device_register(9)
• iio_device_claim_direct(9)
• iio_device_release_direct(9)
• iio_device_try_claim_buffer_mode(9)
• iio_device_release_buffer_mode(9)
• IIO_DEV_ACQUIRE_DIRECT_MODE(9)
• IIO_DEV_ACQUIRE_FAILED(9)
• IIO_DEV_GUARD_CURRENT_MODE(9)
• iio_device_put(9)
• dev_to_iio_dev(9)
• iio_device_get(9)
• iio_device_set_parent(9)
• iio_device_get_drvdata(9)
• IIO_DECLARE_BUFFER_WITH_TS(9)
• IIO_DECLARE_DMA_BUFFER_WITH_TS(9)
• IIO_DECLARE_QUATERNION(9)
• iio_get_debugfs_dentry(9)
• iio_device_suspend_triggering(9)
• iio_device_resume_triggering(9)
• iio_get_current_scan_type(9)
• iio_get_masklength(9)
• iio_for_each_active_channel(9)
• IIO_DEGREE_TO_RAD(9)
• IIO_RAD_TO_DEGREE(9)
• IIO_G_TO_M_S_2(9)
• IIO_M_S_2_TO_G(9)

like I said. long list. but we read it, we respected it, we moved on 💅

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aaaand that's the page!! 🎀 big slay, big ./include/linux/iio energy, dated October 2026 — which is so far away it's basically a time capsule bestie 😭🦋 keep it in the group chat, iykyk 💖✨