iio_format_value(9)

This is iio_format_value(9) from the Kernel API Manual — yes bestie, we're doing kernel API formatting today, and it's lowkey iconic. 💖✨

🌸 NAME 🌸

iio_format_value — formats a IIO value into its string representation. Periodt. 💅

🦋 SYNOPSIS 🦋

ssize_t iio_format_value (char *buf , unsigned int type , int size , int
       *vals );

🎀 ARGUMENTS 🎀

• buf — the buffer to which the formatted value gets written, which is assumed to be big enough (i.e. PAGE_SIZE). No cap, it trusts you. 💖
• type — one of the IIO_VAL_* constants. This decides how the val and val2 parameters are formatted. Slay, type does the choosing. ✨
• size — number of IIO value entries contained in vals. Count them, bestie. 🔢
• vals — pointer to the values; exact meaning depends on the type parameter. It's giving "context is everything." 👑

🔥 RETURN 🔥

0 by default, a negative number on failure, or the total number of characters written for a type that belongs to the IIO_VAL_* constant. That's the whole return vibe. 🌈

💜 SEE ALSO 💜

• Kernel file — ./drivers/iio/industrialio-core.c
• iio_device_id(9)
• iio_buffer_enabled(9)
• iio_find_channel_from_si(9)
• iio_device_set_clock(9)
• iio_device_get_clock(9)
• iio_get_time_ns(9)
• iio_read_mount_matrix(9)
• __iio_str_to_fixpoint(9)
• iio_str_to_fixpoint(9)
• iio_free_chan_devattr_list(9)
• iio_device_alloc(9)
• iio_device_free(9)
• devm_iio_device_alloc(9)
• iio_chrdev_open(9)
• iio_chrdev_release(9)
• iio_active_scan_mask_index(9)
• iio_device_unregister(9)
• __iio_dev_mode_lock(9)
• __iio_dev_mode_unlock(9)
• iio_device_get_current_mode(9)

Source/version: ./drivers/iio · Date: October 2026 · Page: iio_format_value(9) — later bestie, stay formatted 🫶💖