IIO_DEV_ACQUIRE_FAILED(9)

💖 IIO_DEV_ACQUIRE_FAILED 💖

okay bestie, welcome to the Kernel API Manual — this one's IIO_DEV_ACQUIRE_FAILED, and honestly? she's short, she's sweet, she's a one-line queen 👑

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✨ NAME ✨

IIO_DEV_ACQUIRE_FAILED — literally just a wrapper around ACQUIRE_ERR(), no cap 🎀

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🌸 SYNOPSIS 🌸

IIO_DEV_ACQUIRE_FAILED (claim );

that's it. that's the whole thing. iconic behavior fr 💅

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🦋 ARGUMENTS 🦋

• claim — the claim variable you passed to IIO_DEV_ACQUIRE_*_MODE. like, the same one. don't get cute and pass something else, i'm watching 👀

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💜 RETURN 💜

• true if it failed to acquire the mode 😭
• otherwise false

yes bestie the naming is a little jump-scare-y, it returns true when things went bad. read it as "acquire failed? true." 🫶

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🔥 SEE ALSO 🔥

Kernel file ./include/linux/iio/iio.h — and the whole extended friend group, in order, exactly as listed 💖

• 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_GUARD_CURRENT_MODE(9)
• iio_device_put(9)
• dev_to_iio_dev(9)
• iio_device_get(9)
• iio_device_set_parent(9)
• iio_device_set_drvdata(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)

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that's the whole page bestie, she's a micro-icon and we respect her for it 🧚

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mwah 💋 this came from ./include/linux/iio, dated October 2026, and it's filed under IIO_DEV_ACQUIRE_FAILED(9) — go read the other ones too, iykyk 🌈