hid_exists_dquirk(9)

💖 hid_exists_dquirk(9) — Kernel API Manual realness 💖

okay bestie, welcome to the hid_exists_dquirk(9) page — this is the Kernel API Manual, and we're finding any dynamic quirks for a HID device. let's get into it 🫶

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🌸 NAME 🌸

hid_exists_dquirk — find any dynamic quirks for a HID device

✨ SYNOPSIS ✨

struct hid_device_id * hid_exists_dquirk (const struct hid_device *hdev
);

🌈 ARGUMENTS 🌈

• hdev — the HID device to match. that's the one we're checking against, bestie 🎯

💅 DESCRIPTION 💅

okay so here's the tea: it scans dquirks_list for a matching dynamic quirk, and if it finds one, it returns a pointer to the relevant struct hid_device_id. super straightforward, no cap ✨

but the lock rule is serious: it must be called with a read lock held on dquirks_lock. like, do not skip this, bestie 💀

🎀 RETURN 🎀

NULL if no quirk is found. struct hid_device_id * if found. literally that's the return vibe 💅

🦋 SEE ALSO 🦋

Kernel file ./drivers/hid/hid-quirks.c plus these iconic functions:

• hid_modify_dquirk(9)
• hid_remove_all_dquirks(9)
• hid_quirks_init(9)
• hid_quirks_exit(9)
• hid_gets_squirk(9)
• hid_lookup_quirk(9)

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💖 okay that's the whole page, bestie! straight from ./drivers/hid, dated October 2026, and it's all about hid_exists_dquirk(9). periodt 💅✨