cpqhp_hardware_test(9)

💅 cpqhp_hardware_test(9) — the Kernel API Manual page, but make it make sense 🎀

okay so bestie, welcome to the <pink>Kernel API Manual</pink> ✨ this one's called cpqhp_hardware_test(9) and honestly? it's giving "the hot-plug girlies needed a little playground" 🌸 let's get into it 🦋

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🧚 NAME

cpqhp_hardware_test — runs hardware tests 💅 that's it, that's the whole job, and she does it slayfully 👑

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⭐ SYNOPSIS

int cpqhp_hardware_test (struct controller *ctrl , int test_num );

like, that's the signature, keep it exactly like that, no notes 🙈

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🎀 ARGUMENTS

• ctrl — the target controller 🫶 like, which controller are we testing? this one. her. main character energy.
• test_num — ngl this is literally just the number written to the "test" file in sysfs 🍓 so whatever number you drop in sysfs? that's the number that ends up here. iykyk.

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🌈 DESCRIPTION

okay so, the actual description, verbatim vibe-wise: for hot plug ctrl folks to play with. 💖

like, that's genuinely it — this is the lil' sandbox for the hot plug controller people to mess around with. no cap, that's the entire description, and honestly the brevity ate 💀✨

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🔥 SEE ALSO

hiii bestie here's the whole friend group, all the kernel-file adjacent besties from ./drivers/pci/hotplug/cpqphp_ctrl.c 👑

• cpqhp_find_slot(9)
• sort_by_size(9)
• sort_by_max_size(9)
• do_pre_bridge_resource_split(9)
• do_bridge_resource_split(9)
• get_io_resource(9)
• get_max_resource(9)
• get_resource(9)
• cpqhp_resource_sort_and_combine(9)
• cpqhp_slot_create(9)
• slot_remove(9)
• bridge_slot_remove(9)
• cpqhp_slot_find(9)
• set_controller_speed(9)
• board_replaced(9)
• board_added(9)
• remove_board(9)
• cpqhp_pushbutton_thread(9)
• switch_leds(9)
• configure_new_device(9)
• configure_new_function(9)

and if you're reading this in the source tree, the kernel file to check is ./drivers/pci/hotplug/cpqphp_ctrl.c — go say hi 🫶

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and that's the whole page, bestie!! 🌈 shoutout to ./drivers/pci/hotplug and <purple>October 2026</purple> for the stamp of approval at the bottom — mwah, love that for us 💜✨ periodt 🎀