iio_backend_data_size_set(9)

💅 iio_backend_data_size_set(9) 💅

okay so bestie, this is the Kernel API Manual page for iio_backend_data_size_set(9), and it’s giving “backend device needs to know the data width/size on the bus” energy. no cap, let’s get into it 🎀✨

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✨ NAME ✨

iio_backend_data_size_set — set the data width/size in the data bus.

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🌸 SYNOPSIS 🌸

int iio_backend_data_size_set (struct iio_backend *back , unsigned int
       size );

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🦋 ARGUMENTS 🦋

• back — Backend device. the main character of this call, fr fr 🫶
• size — Size in bits. yes, bits, not vibes 📏✨

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💖 DESCRIPTION 💖

okay so picture this: some frontend devices can dynamically control the word/data size on the interface/data bus. highkey iconic behavior, honestly 🌈

because of that, the backend device needs to be aware of it so data can be correctly transferred. that’s the whole point: keep the backend in the loop, let the data transfer slay 💅🔥

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✅ RETURN ✅

0 on success, negative error number on failure. clean, simple, periodt 💖

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👀 SEE ALSO 👀

• Kernel file: ./drivers/iio/industrialio-backend.c 📁
• iio_backend_debugfs_add(9)
• iio_backend_debugfs_print_chan_status(9)
• iio_backend_chan_enable(9)
• iio_backend_chan_disable(9)
• iio_backend_disable(9)
• iio_backend_enable(9)
• devm_iio_backend_enable(9)
• iio_backend_data_format_set(9)
• iio_backend_data_source_set(9)
• iio_backend_data_source_get(9)
• iio_backend_set_sampling_freq(9)
• iio_backend_test_pattern_set(9)
• iio_backend_chan_status(9)
• iio_backend_iodelay_set(9)
• iio_backend_data_sample_trigger(9)
• devm_iio_backend_request_buffer(9)
• iio_backend_read_raw(9)
• iio_backend_ext_info_get(9)
• iio_backend_ext_info_set(9)
• iio_backend_interface_type_get(9)
• iio_backend_oversampling_ratio_set(9)
• iio_backend_extend_chan_spec(9)
• iio_backend_has_caps(9)
• iio_backend_filter_type_set(9)
• iio_backend_interface_data_align(9)
• iio_backend_num_lanes_set(9)
• iio_backend_ddr_enable(9)
• iio_backend_ddr_disable(9)
• iio_backend_data_stream_enable(9)
• iio_backend_data_stream_disable(9)
• iio_backend_data_transfer_addr(9)
• devm_iio_backend_get(9)
• devm_iio_backend_get_by_index(9)
• devm_iio_backend_fwnode_get(9)
• __devm_iio_backend_get_from_fwnode_lookup(9)
• iio_backend_get_priv(9)
• devm_iio_backend_register(9)

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xoxo, your kernel bestie 💖 — source/version: ./drivers/iio, date: October 2026, page: iio_backend_data_size_set(9) 🌸🫶✨