devm_iio_init_iio_gts(9)

✨ devm_iio_init_iio_gts ✨

okay so bestie, this is the function that sets up your gain-time-scale helper for you, in the Kernel API Manual (that's the manual name, slay). it's called devm_iio_init_iio_gts and it's literally here to make your life easier before you go off and do scale stuff. no cap.

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🌸 SYNOPSIS 🌸

int devm_iio_init_iio_gts (struct device *dev , int max_scale_int , int
max_scale_nano , const struct iio_gain_sel_pair *gain_tbl , int num_gain
, const struct iio_itime_sel_mul *tim_tbl , int num_times , struct
iio_gts *gts );

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🎀 ARGUMENTS 🎀

• dev — pointer to the device whose lifetime the gts resources are bound to 🫶 like they're literally tied to this device's whole existence
• max_scale_int — the integer part of the maximum scale value, the big whole number vibe
• max_scale_nano — the fraction part of the maximum scale value, the tiny little nano detail ✨
• gain_tbl — table describing supported gains, it's giving lookup table realness
• num_gain — number of gains in the gain table, like how many entries we're working with
• tim_tbl — table describing supported integration times. 💅 important: provide the integration time table sorted so that the preferred integration time is in the first array index. the search functions (like iio_gts_find_time_and_gain_sel_for_scale) start searching from the first provided time. so yeah, put your fave first, periodt.
• num_times — number of times in the time table, counting them all bestie
• gts — pointer to the helper struct, the main character itself 👑

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🦋 DESCRIPTION 🦋

okay so this initializes the gain-time-scale helper for use. literally just set it up and let it work. note some things that are non-negotiable:

gains, times, selectors, and multipliers must be positive. negative values are reserved for error checking, so don't come in here with negatives, that's not the vibe 🙈.

also, the total gain (maximum gain * maximum time multiplier) must not overflow int. no overflow, no accidental chaos, handle it.

the allocated resources will be released upon device detach — so when the device dips, the resources go too. automatic cleanup, iconic 🌈.

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⭐ RETURN ⭐

0 on success. that's it, plain and simple, 0 and you're golden 💖

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🌟 SEE ALSO 🌟

bestie the whole friend group:

• Kernel file ./drivers/iio/industrialio-gts-helper.c
• iio_gts_get_gain(9)
• gain_get_scale_fraction(9)
• iio_gts_total_gain_to_scale(9)
• iio_gts_purge_avail_scale_table(9)
• iio_gts_build_avail_scale_table(9)
• iio_gts_build_avail_time_table(9)
• iio_gts_purge_avail_time_table(9)
• iio_gts_build_avail_tables(9)
• iio_gts_purge_avail_tables(9)
• devm_iio_gts_build_avail_tables(9)
• iio_gts_all_avail_scales(9)
• iio_gts_avail_scales_for_time(9)
• iio_gts_avail_times(9)
• iio_gts_find_sel_by_gain(9)
• iio_gts_find_gain_by_sel(9)
• iio_gts_get_min_gain(9)
• iio_find_closest_gain_low(9)
• iio_gts_find_gain_for_scale_using_time(9)
• iio_gts_find_gain_sel_for_scale_using_time(9)
• iio_gts_find_gain_time_sel_for_scale(9)
• iio_gts_get_total_gain(9)
• iio_gts_get_scale(9)
• iio_gts_find_new_gain_sel_by_old_gain_time(9)
• iio_gts_find_new_gain_by_old_gain_time(9)
• iio_gts_find_new_gain_by_gain_time_min(9)

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./drivers/iio · October 2026 · devm_iio_init_iio_gts(9) — mwah, that's the page bestie, go slay your IIO init 💅🫶✨