devm_fwnode..._get_by_name(9)

💅 devm_fwnode..._get_by_name(9) ✨

okay so bestie, welcome to the Kernel API Manual 😌 this one lives in ./include/linux/iio and honestly? she's a whole vibe. buckle up 🎀

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🌸 NAME 🌸

devm_fwnode_iio_channel_get_by_name — it's literally the resource-managed version of fwnode_iio_channel_get_by_name(), no cap 💖

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✨ SYNOPSIS ✨

struct iio_channel * devm_fwnode_iio_channel_get_by_name (struct device
*dev , struct fwnode_handle *fwnode , const char *consumer_channel );

that's the whole signature, bestie — three args, one struct iio_channel * coming back at you 🦋

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🫶 ARGUMENTS 🫶

• dev — pointer to the consumer device. that's your device, main character energy 👑
• fwnode — pointer to the consumer Firmware node 🌈
• consumer_channel — a unique name so you can identify the channel on the consumer side. it typically describes how the channel gets used inside the consumer — like, for example, 'battery_voltage' 🍓

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💜 DESCRIPTION 💜

so here's the tea: it returns a pointer to a negative errno if it can't get the iio channel 😭 otherwise it returns a valid pointer for the iio channel. slay 💅

and the best part? the allocated iio channel is automatically released when the device is unbound — devm really said "i'll handle it, you go be great" ✨

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🦋 SEE ALSO 🦋

the whole friend group, fr fr — and also the kernel file ./include/linux/iio/consumer.h:

struct iio_channel(9), iio_channel_get(9), iio_channel_release(9), devm_iio_channel_get(9), iio_channel_get_all(9), iio_channel_release_all(9), devm_iio_channel_get_all(9), fwnode_iio_channel_get_by_name(9), iio_channel_get_all_cb(9), iio_channel_cb_set_buffer_watermark(9), iio_channel_release_all_cb(9), iio_channel_start_all_cb(9), iio_channel_stop_all_cb(9), iio_channel_cb_get_channels(9), iio_channel_cb_get_iio_dev(9), iio_read_channel_raw(9), iio_read_channel_average_raw(9), iio_read_channel_processed(9), iio_read_channel_processed_scale(9), iio_write_channel_attribute(9), iio_read_channel_attribute(9), iio_write_channel_raw(9), iio_read_max_channel_raw(9), iio_read_min_channel_raw(9), iio_read_avail_channel_raw(9), iio_read_avail_channel_attribute(9), iio_get_channel_type(9), iio_read_channel_offset(9), iio_read_channel_scale(9), iio_multiply_value(9), iio_convert_raw_to_processed(9), iio_get_channel_ext_info_count(9), iio_read_channel_ext_info(9), iio_write_channel_ext_info(9), iio_read_channel_label(9)

like, that's the entire roster — not me listing all of them 💀 but every single one is here, i would never leave a bestie out 🫶

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ok that's the page!! ily, go read your sensors 💖

and finally, the cute lil sign-off: this one's filed under ./include/linux/iio, from October 2026, and it's the devm_fwnode..._get_by_name(9) page of the Kernel API Manual 🌸 periodt.