cppc_get_auto_sel(9)

✨ cppc_get_auto_sel(9) ✨

okay so bestie, welcome to the Kernel API Manual 💖 this one's a lil function called cppc_get_auto_sel(9) and honestly? she's a reader, not a writer. no cap. 🌸

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💅 NAME 💅

cppc_get_auto_sel — Read autonomous selection register.

like, she goes and reads it. that's her whole job. respect her for it 🫶

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🎀 SYNOPSIS 🎀

int cppc_get_auto_sel (int cpu , bool *enable );

that's it. that's the whole vibe check. two args, returns an int, we love a simple signature ✨

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🦋 ARGUMENTS 🦋

• cpu — CPU from which to read register. yes, which CPU — you gotta tell her where to look 👀
• enable — Return address. it's where the answer comes back to you, so like, don't lose track of it okay?? 💀

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🌈 SEE ALSO 🌈

okay this is the part where I list, like, everyone she hangs out with. it's a big friend group, get comfy 🍓

the Kernel file is ./drivers/acpi/cppc_acpi.c — that's where she lives 🏠

• acpi_get_psd_map(9)
• cpc_ffh_supported(9)
• cpc_supported_by_cpu(9)
• pcc_data_alloc(9)
• acpi_cppc_processor_probe(9)
• acpi_cppc_processor_exit(9)
• cpc_read_ffh(9)
• cpc_read_ffh_fb_ctrs(9)
• cpc_write_ffh(9)
• cppc_get_desired_perf(9)
• cppc_get_nominal_perf(9)
• cppc_get_highest_perf(9)
• cppc_get_epp_perf(9)
• cppc_get_perf_caps(9)
• cppc_perf_ctrs_in_pcc_cpu(9)
• cppc_perf_ctrs_in_pcc(9)
• cppc_get_perf_ctrs(9)
• cppc_set_epp(9)
• cppc_get_auto_act_window(9)
• cppc_set_auto_act_window(9)
• cppc_set_auto_sel(9)
• cppc_set_enable(9)
• cppc_get_perf(9)
• cppc_set_perf(9)
• cppc_get_perf_limited(9)
• cppc_set_perf_limited(9)
• cppc_get_transition_latency(9)

and that's the whole group chat, mwah 💋

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ngl bestie the entire page is only like four sections, so this was a speedrun. iconic of her honestly 👑

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and that's a wrap! 🧚 this lil cutie lives under ./drivers/acpi and the page is stamped October 2026 — go read a register, you got this 💜