reset_contro...ive_released(9)

💅 reset_contro...ive_released(9) — from the Kernel API Manual, bestie

okay so this is a page from the Kernel API Manual, and it's about a function whose full name is genuinely a whole paragraph: reset_control_bulk_get_optional_exclusive_released. yes. that's one function. the kernel is not okay and we love that for it ✨

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🌸 NAME 🌸

reset_control_bulk_get_optional_exclusive_released — look up and grab optional, temporarily exclusive references to a whole bunch of reset controllers at once. it's giving "i have several resets and zero patience" 🎀

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🦋 SYNOPSIS 🦋

int reset_control_bulk_get_optional_exclusive_released (struct device
*dev , int num_rstcs , struct reset_control_bulk_data *rstcs );

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✨ ARGUMENTS ✨

• dev — the device that's gonna get reset by the controller 🫶
• num_rstcs — how many entries live in the rstcs array (yes, you gotta count them yourself, no cap)
• rstcs — an array of struct reset_control_bulk_data with the reset line names already set. fill in the names, that part's on you 💅

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💖 DESCRIPTION 💖

so this is the optional variant of reset_control_bulk_get_exclusive_released. the vibe check here is: if the reset you're asking for isn't specified in the device tree, this function just returns 0 instead of throwing an error at you 😌 and the missing rtsc gets set to NULL — no drama, no crash, iconic behavior.

and if you want the full lore? go read reset_control_bulk_get_exclusive_released, because this page literally points you there for more information. iykyk 📖

lowkey important: this is the optional version, which is why a missing device-tree reset is a chill 0 and a NULL instead of an error. that's the whole personality of this function, don't forget it 🧚

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👑 SEE ALSO 👑

the kernel file ./include/linux/reset.h says hi, and so do all of these besties:

• struct reset_control_bulk_data(9)
• enum reset_control_flags(9)
• reset_control_get_exclusive(9)
• reset_control_bulk_get_exclusive(9)
• reset_control_get_exclusive_released(9)
• reset_control_bulk_get_exclusive_released(9)
• reset_control_get_shared(9)
• reset_control_bulk_get_shared(9)
• reset_control_get_optional_exclusive(9)
• reset_control_bulk_get_optional_exclusive(9)
• reset_control_get_optional_shared(9)
• reset_control_bulk_get_optional_shared(9)
• of_reset_control_get_exclusive(9)
• of_reset_control_get_optional_exclusive(9)
• of_reset_control_get_shared(9)
• of_reset_control_get_exclusive_by_index(9)
• of_reset_control_get_shared_by_index(9)
• devm_reset_control_get_exclusive(9)
• devm_reset_control_get_exclusive_deasserted(9)
• devm_reset_control_bulk_get_exclusive(9)
• devm_reset_control_get_exclusive_released(9)
• devm_reset_control_bulk_get_exclusive_released(9)
• devm_reset_control_get_optional_exclusive_released(9)
• devm_reset_control_bulk_get_optional_exclusive_released(9)
• devm_reset_control_get_shared(9)
• devm_reset_control_get_shared_deasserted(9)
• devm_reset_control_bulk_get_shared(9)
• devm_reset_control_bulk_get_shared_deasserted(9)
• devm_reset_control_get_optional_exclusive(9)
• devm_reset_control_get_optional_exclusive_deasserted(9)
• devm_reset_control_bulk_get_optional_exclusive(9)
• devm_reset_control_get_optional_shared(9)
• devm_reset_control_get_optional_shared_deasserted(9)
• devm_reset_control_bulk_get_optional_shared(9)
• devm_reset_control_get_exclusive_by_index(9)
• devm_reset_control_get_shared_by_index(9)

like. thirty-six references. she ate and left absolutely no crumbs 🔥

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that's the whole page, bestie — go forth and release those exclusively-optional-bulk resets 🦋

mwah 💋 this lil sign-off comes to you from ./include/linux, dated October 2026, and honestly? the source file ate. periodt.