hgsmi_query_conf(9)

💅 hgsmi_query_conf — the Kernel API Manual, bestie edition 🎀

okay so real talk, hgsmi_query_conf(9) is a kernel function and its whole personality is: it goes and asks the host for an HGSMI configuration parameter, and it does it via an HGSMI command. that's it, that's the vibe. no cap. ✨

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✨ NAME ✨

hgsmi_query_conf — Query the host for an HGSMI configuration parameter via an HGSMI command.

like literally, you want a conf value, you ask the host, the host answers through an HGSMI command. iykyk 💖

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🦋 SYNOPSIS 🦋

int hgsmi_query_conf (struct gen_pool *ctx , u32 index , u32 *value_ret );

this is the whole signature, character for character, don't come for me 🙈

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🌸 ARGUMENTS 🌸

• ctx — the context containing the heap used. like, this is where the heap lives, she's the main character of memory allocation here 👑
• index — the index of the parameter you wanna query. which one? this one. 🎀
• value_ret — where to store the value of the parameter on success. note the "on success" bestie, if it flops there's nothing to store 😭

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🔥 RETURN 🔥

0 or a negative errno value.

so like, 0 = slay, we ate. negative errno = it's giving problems, check your errno fr fr 💀

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🌈 SEE ALSO 🌈

• kernel file: ./drivers/gpu/drm/vboxvideo/hgsmi_base.c — the source, go read it, it's iconic ⭐
• hgsmi_report_flags_location(9)
• hgsmi_send_caps_info(9)
• hgsmi_update_pointer_shape(9)

all the HGSMI besties, they're a package deal 🫶

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okay that's the whole page, you understood it perfectly, i'm so proud of you 💜 this came to you from ./drivers/gpu/drm/vboxvideo, dated October 2026, and yes the manual itself goes by hgsmi_query_conf(9) — mwah, study hard, drink water, and remember: the heap is in ctx 🍓🧚‍♀️