devm_iio_channel_get(9)

💖 devm_iio_channel_get — kernel API manual, bestie edition 💖

okay so we're in the devm_iio_channel_get(9) page today, and honestly? it's a little icon. it's the resource-managed glow-up of iio_channel_get(), and yes that means what you think it means (spoiler: it cleans up after itself, we love a self-sufficient king 👑).

✨ NAME ✨

devm_iio_channel_get — the resource managed version of iio_channel_get(). that's it, that's the whole vibe. 🎀

🌸 SYNOPSIS 🌸

struct iio_channel * devm_iio_channel_get (struct device *dev , const
char *consumer_channel );

🦋 ARGUMENTS 🦋

• dev — pointer to the consumer device, periodt. and heads up: the device name has to match the name of the device as provided in the iio_map that the desired provider-to-consumer mapping was registered with. no match, no channel, that's the rule 💅
• consumer_channel — a unique name that identifies the channel on the consumer side. it typically describes how the channel is used within the consumer — like 'battery_voltage', for example. iykyk 🔥

🧚 DESCRIPTION 🧚

so what does it actually do? it returns a pointer to a negative errno if it's not able to get the iio channel. otherwise it returns a valid pointer for the iio channel. simple as that, no cap ✨

and here's the main character energy part: the allocated iio channel is automatically released when the device is unbound. you don't have to do a single thing. it handles its own cleanup. obsessed 😭🫶

ngl this is the whole reason devm_ exists — let the devres machinery carry the baggage so you never have to remember to free it yourself 💖

🌈 SEE ALSO 🌈

kernel file ./include/linux/iio/consumer.h struct iio_channel(9), iio_channel_get(9), iio_channel_release(9), iio_channel_get_all(9), iio_channel_release_all(9), devm_iio_channel_get_all(9), fwnode_iio_channel_get_by_name(9), devm_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)

that's the whole page bestie, you ate that 💅✨ this one lives in ./include/linux/iio, dated October 2026 — and it's literally titled devm_iio_channel_get(9) in case you forgot already 🙈💜 go read a channel, slay 🎀